Suno Song Generation API Integration Guide

As AI applications become more widespread, various AI programs have gradually become popular. AI has gradually penetrated every aspect of people's work and lives. The industries involved in AI are also becoming increasingly diverse, from initial writing, to healthcare and education, and now music.

Suno is a professional, high-quality AI song and music creation platform. Users only need to enter simple text prompts to generate songs with vocals based on genre styles and lyrics. This AI music generator was developed by team members from well-known technology companies such as Meta, TikTok, and Kensho, with the goal of allowing everyone to create wonderful music without needing any musical instruments or tools.

The following is the progress of model updates:

Version	model	Launch Date	lyric Limit	style Limit	Maximum Song Duration
v6	chirp-v6	2026.09.09	—	—	—
v6 Wild	chirp-v6-wild	2026.09.09	—	—	—
v6 Mini	chirp-v6-mini	2026.09.09	—	—	—
v5.5	chirp-v5-5	2026.03.27	5000	1000	8 minutes
v5	chirp-v5	2025.09.23	5000	1000	8 minutes
v4.5+	chirp-v4-5-plus	2025.07.17	5000	1000	8 minutes
v4.5	chirp-v4-5	2025.05.03	5000	1000	4 minutes
v4	chirp-v4	2024.12.17	3000	200	150 seconds
v3.5	chirp-v3-5	---	3000	200	120 seconds

The lyric and style limits in the table above are the upper limits in custom mode (when custom is true). The non-custom inspiration mode (when custom is false) only requires filling in prompt, with a maximum length of 500 characters (consistent across all models).

Suno now supports chirp-v6, chirp-v6-wild, and chirp-v6-mini. chirp-v6 is recommended; older model names remain compatible.

However, Suno officially does not provide an API. AceDataCloud provides a set of Suno APIs that simulate integration with the official Suno platform, allowing you to quickly and conveniently generate the music you want.

¶ Application and Usage

To use the Suno Audios Generation API, first go to the Ace Data Cloud Console to obtain your API Token and keep it for later use.

If you have not logged in or registered yet, you will be automatically redirected to the login page, where you will be invited to register and log in. After completion, you will automatically return to the current page.

One API Token can call all platform services; there is no need to apply separately for each service. Your first application will include free credits for a free trial; when credits are insufficient, you can top up your general balance in the Console.

📘 Full documentation: Suno Audios Generation API →

¶ Basic Usage

For whatever kind of song you want, you can enter any piece of text. For example, if I want to generate a song about Christmas, I can enter a song for Christmas, as shown below:

You can see that we have set the Request Headers here, including:

accept: The format of the response result you want to receive. Here it is set to application/json, which is JSON format.
authorization: The key for calling the API. After applying, you can directly select it from the dropdown.

Additionally, the Request Body is set, including:

action: Audio task type; defaults to generate. Supports operations such as generation, extension, cover, mashup, stem separation, adding audio tracks, extracting specified audio tracks, generating sound effects, and adjusting speed, all invoked through POST /suno/audios.
prompt: Suno's official inspiration mode prompt (effective when custom is false), with a maximum of 500 characters.
model: The model for this music generation task. The v6 series includes chirp-v6, chirp-v6-wild, and chirp-v6-mini; legacy model names remain compatible.
max_mode: Enhanced generation mode. generate is enabled only when both custom and max_mode are true, costing 1.12 Credits; add_stem can be enabled directly, costing 1.344 Credits. When disabled or omitted, the costs are 0.56 and 0.672 Credits respectively.
variety: The diversity intensity of generated results; options are off, normal, high, extra, and max. Only used for generate and add_stem; passing it to other actions returns 400.
lyric: Lyrics content for Suno's official custom mode. Maximum 3000 characters for chirp-v3-5 and chirp-v4; maximum 5000 characters for chirp-v4-5 and above (including chirp-v5 and chirp-v5-5).
custom: Whether to use custom mode; defaults to: false.
instrumental: The instrumental music option for Suno's official inspiration mode.
title: Music title for Suno's official custom mode. Maximum 80 characters for chirp-v3-5 and chirp-v4; maximum 100 characters for chirp-v4-5 and above.
style: Music style for Suno's official custom mode. Maximum 200 characters for chirp-v3-5 and chirp-v4; maximum 1000 characters for chirp-v4-5 and above (including chirp-v5 and chirp-v5-5).
negative_tags: Music styles or genres to exclude during custom generation; can also be used for replace_section. This API currently has no fixed character limit for this field; overly long content may still be unprocessable, so it is recommended to keep descriptions concise.
audio_weight: The influence weight of audio or voice characteristics, ranging from 0 to 1; 0 is also a valid value. It can be used for operations such as generation, extension, cover, adding audio tracks, and voice consistency; when there is no reference audio or voice characteristic, the model may weaken or ignore this value.
audio_id: The ID of reference music, used for subsequent operations such as cover, extension, and stem separation. Audio files can still be downloaded, but this does not mean subsequent processing for that ID is always available; if suno_processing_unavailable is returned, retain the task_id and trace_id and contact support.
overpainting_start/overpainting_end: The start and end times for adding vocals to existing instrumental music, in seconds.
underpainting_start/underpainting_end: The start and end times for adding accompaniment to a cappella vocals, in seconds.
persona_id: The voice ID obtained through the Persona or voice creation API, not the song's audio_id.
continue_at: The extension boundary, in seconds. For example, 213.5 means generating the subsequent segment starting at 3 minutes and 33.5 seconds. lyric and style only guide new content after the boundary and will not replace lyrics or singing before the boundary in the source audio.
style_influence: Style influence in custom mode, ranging from 0 to 1; larger values usually adhere more closely to the selected style; 0 is passed as a valid value.
replace_section_end: The final time of the replacement segment.
replace_section_start: The start time of the replacement segment.
vocal_gender: Controls the preference for female or male vocals: female vocals f, male vocals m; effective for models 4.5 and above; it is a preference setting and is not guaranteed to be strictly followed.
weirdness: Weirdness in custom mode, ranging from 0 to 1; larger values are usually more creative and experimental; 0 is passed as a valid value.
duration: The desired song duration, in seconds; must be an integer, ranging from 10 to 360. Currently, only generate uses this parameter, and the specific effect depends on the mode and model. It is a preference prompt rather than a hard constraint: the model will refer to it but is not guaranteed to achieve it. The actual finished duration is subject to the duration field in the response and is usually shorter than the desired value.

¶ Scope of Voice ID Usage

generate, cover, upload_cover, artist_consistency, and artist_consistency_vox can use persona_id. The latter two actions must provide persona_id; they can also provide the audio_id of the song used when creating that Persona.

extend and upload_extend do not use an additional persona_id. Whether mashup and inspo support voice IDs depends on the selected service channel; other actions are not guaranteed to apply this field, so use it according to the instructions for each operation. vocal_gender is an optional gender preference and cannot replace a voice ID.

Subsequent creation operations require a valid source audio_id; mashup requires at least two mashup_audio_ids. HTTP 400 is returned when required sources or time parameters are missing.

¶ Scope of Advanced Parameters

Parameter	Value	Supported action	Description
`weirdness`	0-1	Optional	Adjusts experimentalism; `0` is a valid value; the effect depends on the action, mode, and model
`style_influence`	0-1	Optional	Adjusts the tendency to follow style; `0` is a valid value; the effect depends on the action, mode, and model
`audio_weight`	0-1	Optional	Adjusts the influence of audio or vocal characteristics; may be ignored by the model when no reference information is available
`variety`	`off` / `normal` / `high` / `extra` / `max`	`generate`, `add_stem`	Adjusts style diversity between results
`max_mode`	boolean	`generate` (requires `custom=true`), `add_stem`	Enhances consistency and is billed according to enhanced mode
`vocal_gender`	`f` / `m`	Generation actions that support vocal control	Preference setting, strict adherence is not guaranteed
`duration`	Integer 10-360	`generate`	Expected duration; other actions do not currently use this field, and the actual length is subject to the result

The platform validates parameter types and value ranges, but will not reject these optional adjustment fields solely because the action differs; the specific effect depends on the action, mode, and model.

lyric_prompt: The prompt for generating lyrics, which takes effect if and only if custom is true and lyric is not provided.
callback_url: The URL for receiving callback results.
async: Optional. When set to true, the API immediately returns a task_id; there is no need to provide callback_url, and the result can then be obtained by polling through the corresponding task query API.

The generated code is as follows:

You can click the "Try" button to test the API directly. Wait 1-2 minutes, and the result is as follows:

{
  "success": true,
  "task_id": "e72fb249-bd5b-4e2a-b20c-8a06fea5ac14",
  "trace_id": "7dbc5b6a-b2c0-4d85-9d39-fa8a8a785ccf",
  "data": [
    {
      "id": "b481b17a-bf50-4e10-8adc-4d5635050893",
      "title": "Under the Mistletoe",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-001",
      "lyric": "[Verse]\nSnowflakes falling on the ground\nTwinkling lights all around\nThe scent of pine fills the air\nChristmas magic everywhere\n[Chorus]\nUnder the mistletoe tonight\nHearts aglow in the soft moonlight\nLaughter echoes\nSpirits bright\nIt’s Christmas time\nIt feels so right\n[Verse 2]\nStockings hung by the fire’s glow\nWarmth inside while the cold winds blow\nCookies baking\nSweet delight\nA season of joy shining bright\n[Chorus]\nUnder the mistletoe tonight\nHearts aglow in the soft moonlight\nLaughter echoes\nSpirits bright\nIt’s Christmas time\nIt feels so right\n[Bridge]\nCarols sung by candlelight\nStars above make the world feel tight\nPeace and love\nA season’s creed\nFilling hearts with all we need\n[Chorus]\nUnder the mistletoe tonight\nHearts aglow in the soft moonlight\nLaughter echoes\nSpirits bright\nIt’s Christmas time\nIt feels so right",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T15:59:32.468Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "prompt": "A song for Christmas",
      "style": "holiday, cheerful, male vocals",
      "duration": 154.92
    },
    {
      "id": "fbf22dab-5e2b-4e02-84c0-6d7605f14c3d",
      "title": "Under the Mistletoe",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-002",
      "lyric": "[Verse]\nSnowflakes falling on the ground\nTwinkling lights all around\nThe scent of pine fills the air\nChristmas magic everywhere\n[Chorus]\nUnder the mistletoe tonight\nHearts aglow in the soft moonlight\nLaughter echoes\nSpirits bright\nIt’s Christmas time\nIt feels so right\n[Verse 2]\nStockings hung by the fire’s glow\nWarmth inside while the cold winds blow\nCookies baking\nSweet delight\nA season of joy shining bright\n[Chorus]\nUnder the mistletoe tonight\nHearts aglow in the soft moonlight\nLaughter echoes\nSpirits bright\nIt’s Christmas time\nIt feels so right\n[Bridge]\nCarols sung by candlelight\nStars above make the world feel tight\nPeace and love\nA season’s creed\nFilling hearts with all we need\n[Chorus]\nUnder the mistletoe tonight\nHearts aglow in the soft moonlight\nLaughter echoes\nSpirits bright\nIt’s Christmas time\nIt feels so right",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T15:59:32.468Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "prompt": "A song for Christmas",
      "style": "holiday, cheerful, male vocals",
      "duration": 158.48
    }
  ]
}

As you can see, at this point we have obtained the content of two songs, including the title, preview image, lyrics, audio, video, and other content.

The field descriptions are as follows:

success: Whether generation was successful. If successful, it is true; otherwise, it is false.
data: A list containing detailed information about the generated songs.
- state: The song generation status, mainly including four types, as follows:
  - succeeded: Generation succeeded
  - pending: In queue
  - running: In progress
  - error: Failed
- id: Song ID
- title: The title of the song
- image_url: The cover image of the song
- lyric: The lyrics of the song
- audio_url: The final audio URL of the song. The platform will prioritize returning an Ace Data Cloud CDN URL; if persistence fails, it may return the original media URL, so please download it promptly.
- video_url: The video file of the song, which opens as an mp4 video.
- created_at: Creation time
- model: The model used, generally the latest v3 model
- style: Style

¶ Custom Generation

If you want to customize the generated lyrics, you can enter lyrics:

At this point, the lyric field can be passed content similar to the following:

[Verse]\nSnowflakes falling all around\nGlistening white\nCovering the ground\nChildren laughing\nFull of delight\nIn this winter wonderland tonight\nSanta's sleigh\nUp in the sky\nRudolph's nose shining bright\nOh my\nHear the jingle bells\nRinging so clear\nBringing joy and holiday cheer\n[Verse 2]\nRoasting chestnuts by the fire's glow\nChristmas lights\nThey twinkle and show\nFamilies gathering with love and cheer\nSpreading warmth to everyone near

Note that \n in the lyrics here represents line breaks. If you do not know how to generate lyrics, you can use the lyric generation API provided by AceDataCloud to generate lyrics through a prompt. The API is Suno Lyrics Generation API.

Next, we will custom-generate a song based on the lyrics, title, and style. You can specify the following content:

lyric: The lyric text
custom: Set to true, which represents custom generation. This parameter defaults to false, which represents generation using prompt.
title: The title of the song.
style: The style of the song, optional.

An example is as follows:

After filling it out, the following code is automatically generated:

The corresponding code:

curl -X POST 'https://api.acedata.cloud/suno/audios' \
-H 'accept: application/json' \
-H 'authorization: Bearer {token}' \
-H 'content-type: application/json' \
-d '{
  "action": "generate",
  "prompt": "A song for Christmas",
  "model": "chirp-v4-5",
  "lyric": "[Verse]\\nSnowflakes falling all around\\nGlistening white\\nCovering the ground\\nChildren laughing\\nFull of delight\\nIn this winter wonderland tonight\\nSanta's sleigh\\nUp in the sky\\nRudolph's nose shining bright\\nOh my\\nHear the jingle bells\\nRinging so clear\\nBringing joy and holiday cheer\\n[Verse 2]\\nRoasting chestnuts by the fire's glow\\nChristmas lights\\nThey twinkle and show\\nFamilies gathering with love and cheer\\nSpreading warmth to everyone near",
  "custom": true
}'

Testing is allowed, and the generated result is similar.

¶ Custom Singer Style Generation Feature

If you want to use a singer style to generate songs, first generate a song through the basic usage above.
Finally, you need to set this song as the singer style, then go to Suno Persona API to generate a singer style ID parameter persona_id based on the music ID audio_id generated officially. The specific parameters are shown in the image below:

After filling it out, the following code is automatically generated:

The corresponding Python code:

import requests

url = "https://api.acedata.cloud/suno/persona"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "audio_id": "97efc9f4-0e8d-4b3e-88df-14568fa1b11f",
    "name": "test"
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can find that you will get a result as follows:

{
  "success": true,
  "task_id": "7628b754-4fe7-4e79-bda4-806d0dd8bf6e",
  "data": {
    "persona_id": "e0d7319e-aa2a-44cb-b00a-916218d7cb0b"
  }
}

We use the audio_id and persona_id above, 97efc9f4-0e8d-4b3e-88df-14568fa1b11f and e0d7319e-aa2a-44cb-b00a-916218d7cb0b respectively, as the example data this time. Then, you can set the parameter action to artist_consistency (if it is the new singer style Persona-v2-vox, action must be set to artist_consistency_vox), and enter the ID of the song that needs to continue being generated and the singer style ID. An example is as follows:

After filling it out, the following code is automatically generated:

The corresponding Python code:

import requests

url = "https://api.acedata.cloud/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "artist_consistency",
    "prompt": "A song for Christmas",
    "model": "chirp-v4-5",
    "persona_id": "e0d7319e-aa2a-44cb-b00a-916218d7cb0b",
    "audio_id": "97efc9f4-0e8d-4b3e-88df-14568fa1b11f"
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can find that you will get a result as follows:

{
  "success": true,
  "task_id": "9b732b1a-bd67-48bc-95e4-90140e06836f",
  "trace_id": "30fcd88e-7687-4137-92d7-913b58115204",
  "data": [
    {
      "id": "727a36e2-8dce-4df7-99e5-14e44635c80f",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-003",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T16:27:33.979Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 244.4
    },
    {
      "id": "3b33301a-b17e-4b25-8842-09b46dab1a36",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-004",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T16:27:33.979Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 229.88
    }
  ]
}

It can be seen that the result content is consistent with the above, which achieves the function of generating songs using a singer style.

¶ Continue Generation Feature

If you want to continue generating an already generated Suno song, you can set the parameter action to extend, and enter the ID of the song that needs to be continued. The song ID is obtained according to the basic usage. As can be seen above, at this point you can see that the song ID is:

"id": "97efc9f4-0e8d-4b3e-88df-14568fa1b11f"

Note that the id in the lyrics here is the ID of the generated song. If you do not know how to generate a song, you can refer to the basic usage above to generate a song.

If you want to continue generating a song you uploaded yourself, you can set the parameter action to upload_extend, and enter the ID of the custom uploaded song that needs to be continued. The song ID is obtained using the Suno Upload Generation API, as shown below:

Next, you must fill in the lyrics for the continuation segment, and you can specify the style:

lyric: Only used to guide the lyrics of the newly generated segment after continue_at; it will not replace the lyrics before this time point in the source audio.
custom: Set to true, indicating custom generation. This parameter defaults to false, indicating generation using prompt.
style: The song style of the continuation segment, optional.
continue_at: The continuation boundary, in seconds. For example, 213.5 indicates that the subsequent segment starts being generated from 3 minutes and 33.5 seconds.

The continue_at for both extend and upload_extend must be greater than 0 and supports fractional seconds, for example, 30.792; it will not be rounded when submitted.

extend is used to continue creating after an existing song, not to replace the lyrics of the entire song. If you want to use new lyrics for the entire song from the beginning, please use generate to generate it again; if you want to reinterpret an existing song as a reference, you can use cover. When passing in an entire set of new lyrics, the original lyrics before continue_at will still not be replaced.

The filling example is as follows:

After filling it in, the code is automatically generated as follows:

What is retained below is a real historical call snapshot. In it, continue_at is 2 seconds, so only the first 2 seconds belong to the original content before the continuation boundary. When actually continuing near the end of a song, this value should be set to the second at which you expect the continuation to begin, and only the new section to be sung after the boundary should be provided in lyric.

The corresponding Python code:

import requests

url = "https://api.acedata.cloud/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "extend",
    "prompt": "A song for Christmas",
    "model": "chirp-v4-5",
    "audio_id": "97efc9f4-0e8d-4b3e-88df-14568fa1b11f",
    "continue_at": 2,
    "lyric": "[Verse]\\nSnowflakes falling all around\\nGlistening white\\nCovering the ground\\nChildren laughing\\nFull of delight\\nIn this winter wonderland tonight\\nSanta's sleigh\\nUp in the sky\\nRudolph's nose shining bright\\nOh my\\nHear the jingle bells\\nRinging so clear\\nBringing joy and holiday cheer\\n[Verse 2]\\nRoasting chestnuts by the fire's glow\\nChristmas lights\\nThey twinkle and show\\nFamilies gathering with love and cheer\\nSpreading warmth to everyone near",
    "custom": True,
    "instrumental": False
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can see that a result will be returned as follows:

{
  "success": true,
  "task_id": "75b835d9-30d1-4641-8524-0aeedbdc9e1a",
  "trace_id": "44c41045-a2e1-4d19-aafc-7abd239d0d5c",
  "data": [
    {
      "id": "0a1e1b10-c36a-41c9-9bfb-b26d9d25db98",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-005",
      "lyric": "[Verse]\\nSnowflakes falling all around\\nGlistening white\\nCovering the ground\\nChildren laughing\\nFull of delight\\nIn this winter wonderland tonight\\nSanta's sleigh\\nUp in the sky\\nRudolph's nose shining bright\\nOh my\\nHear the jingle bells\\nRinging so clear\\nBringing joy and holiday cheer\\n[Verse 2]\\nRoasting chestnuts by the fire's glow\\nChristmas lights\\nThey twinkle and show\\nFamilies gathering with love and cheer\\nSpreading warmth to everyone near",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T16:38:35.509Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 165.92
    },
    {
      "id": "4334c5b4-0a44-4b26-a8f6-66cc4dbb8fc3",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-006",
      "lyric": "[Verse]\\nSnowflakes falling all around\\nGlistening white\\nCovering the ground\\nChildren laughing\\nFull of delight\\nIn this winter wonderland tonight\\nSanta's sleigh\\nUp in the sky\\nRudolph's nose shining bright\\nOh my\\nHear the jingle bells\\nRinging so clear\\nBringing joy and holiday cheer\\n[Verse 2]\\nRoasting chestnuts by the fire's glow\\nChristmas lights\\nThey twinkle and show\\nFamilies gathering with love and cheer\\nSpreading warmth to everyone near",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T16:38:35.509Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 158.84
    }
  ]
}

It can be seen that lyric in the result returns the lyrics text used for this continuation task. This field is not a verbatim transcription of the complete finished audio; for extend, the source audio before continue_at still uses the original lyrics, and the new lyrics are only used to guide the continuation segment.

¶ Get the Complete Song

The current model's extend result usually already includes the source audio before continue_at and new content after the boundary. Please first determine whether it is already a complete song based on the actual duration and content of the returned audio. If what is returned is an independent continuation segment, or if multiple continuation histories need to be explicitly merged into one song, then use the concatenation feature:

action: The content is concat.
audio_id: The ID of the last continuation segment.

For example, if the extended song ID is: 0a1e1b10-c36a-41c9-9bfb-b26d9d25db98, then the parameters can be set as follows:

{
  "action": "concat",
  "audio_id": "0a1e1b10-c36a-41c9-9bfb-b26d9d25db98"
}

The other parameters remain unchanged. What is returned is one complete song, which is the concatenation result of all song segments, but the result contains only one song, as shown below:

{
  "success": true,
  "task_id": "0f794915-8418-4124-93f5-b7eb3a417167",
  "trace_id": "62afcce0-e7e5-44b8-8c2e-4bba12a4f414",
  "data": [
    {
      "id": "0efec7e0-11bf-4313-9981-2c0e7218d7dd",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-007",
      "lyric": "[Verse]\\nSnowflakes falling all around\\nGlistening white\\nCovering the ground\\nChildren laughing\\nFull of delight\\nIn this winter wonderland tonight\\nSanta's sleigh\\nUp in the sky\\nRudolph's nose shining bright\\nOh my\\nHear the jingle bells\\nRinging so clear\\nBringing joy and holiday cheer\\n[Verse 2]\\nRoasting chestnuts by the fire's glow\\nChristmas lights\\nThey twinkle and show\\nFamilies gathering with love and cheer\\nSpreading warmth to everyone near\n[Verse]\\nSnowflakes falling all around\\nGlistening white\\nCovering the ground\\nChildren laughing\\nFull of delight\\nIn this winter wonderland tonight\\nSanta's sleigh\\nUp in the sky\\nRudolph's nose shining bright\\nOh my\\nHear the jingle bells\\nRinging so clear\\nBringing joy and holiday cheer\\n[Verse 2]\\nRoasting chestnuts by the fire's glow\\nChristmas lights\\nThey twinkle and show\\nFamilies gathering with love and cheer\\nSpreading warmth to everyone near",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T16:43:06.718Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 167.91997916666668,
      "concat_history": [
        {
          "continue_at": 2,
          "id": "97efc9f4-0e8d-4b3e-88df-14568fa1b11f",
          "infill": false,
          "source": "web",
          "type": "gen"
        },
        {
          "id": "0a1e1b10-c36a-41c9-9bfb-b26d9d25db98"
        }
      ]
    }
  ]
}

¶ Music Cover

After continuing to generate a song based on an existing song, the style of the returned song may not be quite suitable. If you want to create a cover version of a previously generated song (custom uploaded music is also supported), you need to use the music cover method, where you can specify the following content:

action: The content is cover; when performing a cover operation on custom uploaded music, the content must be specified as: upload_cover.
audio_id: The ID of the previously generated song.

If you need to use a specified voice for the cover, you can also pass persona_id. A private voice created through /suno/voices must first be used to upload the original song in /suno/upload with the same persona_id, and then the returned audio_id must be used for upload_cover. The same service channel must be used for all steps. There is no need to additionally specify vocal_gender; gender preference cannot replace a voice ID.

For example, if the previously generated song ID is: 0a1e1b10-c36a-41c9-9bfb-b26d9d25db98, then the parameters can be set as follows:

{
  "action": "cover",
  "audio_id": "0a1e1b10-c36a-41c9-9bfb-b26d9d25db98",
  "prompt": "A song for Christmas",
  "model": "chirp-v4-5"
}

The other parameters remain unchanged. What is returned is a covered version of the song, which is the result of creating a cover version of the previously generated song, as shown below:

{
  "success": true,
  "task_id": "b9d43d06-2e0a-4b5e-9e0d-7dfab32e00ab",
  "trace_id": "6c5e567d-0fdc-4c44-9b36-4090d9a75ff5",
  "data": [
    {
      "id": "6988fa57-f810-41cf-afab-7838db2c77dc",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-008",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T16:44:13.007Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 182.4
    },
    {
      "id": "ce98b991-0258-4f05-8245-e43d4efa8fb8",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-009",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-17T16:44:13.007Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 179.72
    }
  ]
}

The generated result is similar to the above, completing the process of generating a cover version of the previously generated song.

¶ Replace Segment

When secondary creation requires a separate operation to replace a song segment after generating a song, you can replace a certain segment of the song.

⚠️ Note: replace_section_result_mode defaults to full_song: the system will separately concatenate 2 newly generated candidates and return 2 complete songs. If only the un-concatenated replacement segment candidates are needed, explicitly set it to candidates, then select a candidate and call [Music Concatenation](#Music Concatenation).

The parameter descriptions are as follows:

action: The content is replace_section.
audio_id: The ID of the original song (the source song being replaced).
model: Song generation model.
lyric: The complete lyrics after replacement (including the replaced section and its context, consistent with the content in prompt).
prompt: The new lyrics for the section that needs to be replaced.
style: The style of the song, optional.
negative_tags: Styles or genres to exclude, optional.
replace_section_start: The start time of the replaced segment in the original song (seconds), required and must not be less than 0.
replace_section_end: The end time of the replaced segment in the original song (seconds), required and must be greater than the start time.
replace_section_result_mode: Return mode, defaults to full_song. full_song separately concatenates 2 candidates and returns 2 complete songs; candidates returns 2 un-concatenated candidate segments.

¶ Step 1: Initiate a replacement segment task

For example, if the original generated song ID is: 18db7ed0-2b8a-41db-91c1-b0781dcca0d4 (duration 94.12 seconds), and you want to replace the chorus from the 30th second to the 60th second with new lyrics, then you can set the parameters as follows:

{
  "action": "replace_section",
  "audio_id": "18db7ed0-2b8a-41db-91c1-b0781dcca0d4",
  "model": "chirp-v5-5",
  "custom": false,
  "instrumental": false,
  "lyric": "[Intro]\nGongs and drums resound, red lanterns hang high\n[Verse 1]\nFirecrackers bid farewell to the old year\nWarm spring breezes enter every home\nRed envelopes bring smiles to every face\nGolden snakes dance to celebrate the New Year\n[Chorus]\nPlum blossoms bloom, spring fills the ground\nPlum blossoms bloom, spring fills the ground\nPlum blossoms bloom, spring fills the ground\nPlum blossoms bloom, spring fills the ground\n[Verse 2]\nDumplings fill the New Year's Eve meal with fragrance\nLanterns sway, illuminating reunion",
  "prompt": "Plum blossoms bloom, spring fills the ground\nPlum blossoms bloom, spring fills the ground\nPlum blossoms bloom, spring fills the ground\nPlum blossoms bloom, spring fills the ground",
  "replace_section_start": 30.0,
  "replace_section_end": 60.0,
  "replace_section_result_mode": "full_song"
}

By default, 2 complete songs, each concatenated from one of the two candidates, are returned. If replace_section_result_mode is set to candidates, 2 un-concatenated replacement segments are returned, with a structure consistent with the example below:

{
  "success": true,
  "task_id": "dd067075-a295-4160-8375-d5504327d55b",
  "trace_id": "c34f589b-9195-4d0b-af78-9c890e77609c",
  "data": [
    {
      "id": "364f9d8b-ca25-463b-9a5e-d0b7139e2d6a",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-010",
      "image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-011",
      "lyric": "[Intro]\nGongs and drums resound, red lanterns hang high\n[Verse 1]\nFirecrackers bid farewell to the old year\nWarm spring breezes enter every home\nRed envelopes bring smiles to every face\nGolden snakes dance to celebrate the New Year\n[Chorus]\nPlum blossoms bloom, spring fills the ground\nPlum blossoms bloom, spring fills the ground\nPlum blossoms bloom, spring fills the ground\nPlum blossoms bloom, spring fills the ground\n[Verse 2]\nDumplings fill the New Year's Eve meal with fragrance\nLanterns sway, illuminating reunion",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2026-05-06T06:55:00.000Z",
      "model": "chirp-v5-5",
      "state": "succeeded",
      "style": "",
      "duration": 45.16
    },
    {
      "id": "fae966ea-5f7f-4e80-9962-1c57963c7f8a",
      "title": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "model": "chirp-v5-5",
      "state": "succeeded",
      "duration": 33.8
    }
  ]
}

In candidates mode, the durations of the two returned audio clips (45.16 seconds, 33.8 seconds) are much shorter than the original song (94.12 seconds). They are replacement segments containing a small amount of context, and are not complete songs. You can select a satisfactory candidate and continue with manual concatenation. The default full_song mode completes two concatenations and directly returns 2 complete songs.

¶ Directly return complete songs

If you want to directly obtain complete songs, you can set replace_section_result_mode to full_song in step 1. The API will separately concatenate the two candidates and return 2 complete songs; there is no need to call concat again at this point.

¶ Step 2: Concatenate the replacement segment back into the original song

For the selected segment above (for example, 364f9d8b-ca25-463b-9a5e-d0b7139e2d6a), initiate a concat task according to the method in the [Music Concatenation](#Music Concatenation) section:

{
  "action": "concat",
  "audio_id": "364f9d8b-ca25-463b-9a5e-d0b7139e2d6a",
  "model": "chirp-v5-5"
}

What is returned is the concatenated complete song, as shown below:

{
  "success": true,
  "task_id": "5dbd4a78-0197-4ef3-9c16-8bddaf4f0c94",
  "trace_id": "580bd1da-2ad3-4d75-be1f-6c14bd4b489d",
  "data": [
    {
      "id": "365a9640-0452-4567-80f0-4f5a2a17ddd5",
      "title": "新年快乐",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-012",
      "lyric": "[Intro]\n锣鼓喧天 红灯高挂\n[Verse 1]\n爆竹声声辞旧岁\n春风暖暖入万家\n红包压岁笑开颜\n金蛇起舞贺新春\n[Chorus]\n梅花绽放春意洋溢满地\n梅花绽放春意洋溢满地\n梅花绽放春意洋溢满地\n梅花绽放春意洋溢满地\n[Verse 2]\n饺子飘香年夜饭\n灯笼摇曳照团圆",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2026-05-06T06:56:46.057Z",
      "model": "chirp-v5-5",
      "state": "succeeded",
      "style": "traditional Chinese new year, festive, female vocals, upbeat",
      "duration": 105.28
    }
  ]
}

At this point, duration has been restored to the full song length (105.28 seconds, approximately equal to the original song length), and the audio_url points to the full song after replacement is completed. This completes the secondary creation process of "generation → segment replacement → full song stitching."

¶ Vocal and Instrumental Separation

When secondary creation requires separate operations on the accompaniment and vocals after generating a song, the pure instrumental accompaniment and a cappella vocals can be separated. The following content can then be specified:

action: The content is stems.
audio_id: The ID of the previously generated song.

For example, if the song ID after the original generation is: ec13e502-d043-4eb2-92ee-e900c6da69d1, then the parameters can be set as follows:

{
  "action": "stems",
  "audio_id": "ec13e502-d043-4eb2-92ee-e900c6da69d1"
}

The result of vocal and instrumental separation can be obtained through the above parameters, as follows:

{
  "success": true,
  "task_id": "4050affc-f8a6-4cba-a86c-bf201eed053d",
  "trace_id": "5107ee58-687d-422f-9195-fa0e82e1fcc8",
  "data": [
    {
      "id": "e3de0928-085a-42c4-b982-3b24738d1989",
      "title": "Deck the Sky - Vocals",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-013",
      "lyric": "[Verse]\nSnowflakes dance on rooftops high\nChildren's laughter fills the sky\nCarols ring from church bells loud\nHolidays a joyful crowd\n[Verse 2]\nCandy canes and cocoa warm\nWrapped up tight in our own storm\nStockings hung with dreams and cheer\nMagic growing every year\n[Chorus]\nDeck the sky with twinkling stars\nHoliday joy feels ours and ours\nSing the songs of love and light\nChristmas glows so pure and bright\n[Verse 3]\nFireside tales of long ago\nReindeer prance in icy glow\nEvergreen and tinsel’s gleam\nChristmas time a lovely dream\n[Bridge]\nHearts are full with friends and kin\nMistletoe for love to win\nGifts of love and hope we share\nChristmas spirit everywhere\n[Chorus]\nDeck the sky with twinkling stars\nHoliday joy feels ours and ours\nSing the songs of love and light\nChristmas glows so pure and bright",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "https://cdn.acedata.cloud/assets/examples/gemini/04a043bd-6b23-4b4e-945c-ce48158c3eee-3a89912507c7.mp4?example=video-001",
      "created_at": "2025-01-05T07:49:16.881Z",
      "model": "",
      "state": "succeeded",
      "style": "holiday, jolly",
      "duration": 174.16
    },
    {
      "id": "ad5d7c89-709c-4eb4-a5a6-72f9f5e57fdb",
      "title": "Deck the Sky - Instrumental",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-014",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "https://cdn.acedata.cloud/assets/examples/gemini/04a043bd-6b23-4b4e-945c-ce48158c3eee-3a89912507c7.mp4?example=video-002",
      "created_at": "2025-01-05T07:49:16.892Z",
      "model": "",
      "state": "succeeded",
      "style": "holiday, jolly",
      "duration": 174.16
    }
  ]
}

The generated result is similar to the above, which completes the process of vocal and instrumental separation for the originally generated song.

¶ Full-Track Vocal and Instrumental Separation

The task will return a successful final state only after all audio tracks have finished generating. The appearance of a playable URL during processing does not mean that the entire group of audio tracks has been completed.

When full-track vocal and instrumental separation is needed after generating a song, the following content can be specified:

action: The content is all_stems.
audio_id: The ID of the previously generated song.

For example, if the song ID after the original generation is: bdf23a5a-59f5-4103-b452-054a824a7f9f, then the parameters can be set as follows:

{
  "action": "all_stems",
  "audio_id": "bdf23a5a-59f5-4103-b452-054a824a7f9f"
}

The result of full-track vocal and instrumental separation can be obtained through the above parameters, as follows:

  "success": true,
  "task_id": "f4b16fb9-8478-4857-88c7-b9a1f0bb9518",
  "trace_id": "9c560ebd-4fc6-4bdb-988a-8890160a92fb",
  "data":
[
    {
      "id": "f86ca64a-9519-4ea7-a592-52438e001412",
      "title": "String of Safety (Vocals)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-015",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "99e649a7-a394-47b9-a915-d7f847285a36",
      "title": "String of Safety (Backing Vocals)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-016",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "6d710bf7-809f-4fdc-bb63-b8cb3a456d42",
      "title": "String of Safety (Drums)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-017",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "e05f07e3-7d80-4713-8e51-7f176c733543",
      "title": "String of Safety (Bass)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-018",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "93fe7cd8-62fd-4739-b78e-142c7e0b8562",
      "title": "String of Safety (Guitar)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-019",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "8367d71c-fdd3-441c-8ebe-70c33cca821b",
      "title": "String of Safety (Keyboard)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-020",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "28c03590-731c-416e-8fd3-95cdb3d75043",
      "title": "String of Safety (Percussion)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-021",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "3d4c1a28-4e1c-485a-8201-d21bb93aca2f",
      "title": "String of Safety (Strings)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-022",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "b9db8ded-01ec-4e37-b8a5-64aab3a814c2",
      "title": "String of Safety (Synth)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-023",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "10a5248e-32e6-42b9-8da1-678a8a392aef",
      "title": "String of Safety (FX)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-024",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    },
{
      "id": "2d272128-111f-4901-8f62-5ae1eb43095a",
      "title": "Strings of Safety (Brass)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-025",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "4a7c19a5-f8d4-4e4a-add9-aa0bad9307cc",
      "title": "Strings of Safety (Woodwinds)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-026",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "1ca774f9-3e75-48a6-941b-808875eadcd2",
      "title": "Strings of Safety (Vocals)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-027",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.770Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "14c5ffc7-addf-4fee-afd2-4b8b3e7ee470",
      "title": "Strings of Safety (Backing Vocals)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-028",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "9d044557-450d-48ab-90dc-8eaf6f1cdb6c",
      "title": "Strings of Safety (Drums)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-029",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "efd052d0-c12f-47b3-8282-1f3ef7610e1f",
      "title": "Strings of Safety (Bass)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-030",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "5775372b-292e-4420-96ef-60e57a60cc1f",
      "title": "Strings of Safety (Guitar)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-031",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "dab3f220-19cd-408e-9b96-30ec18f5b049",
      "title": "Strings of Safety (Keyboard)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-032",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "2d0cd6d4-af82-4bb5-86fe-d92bdb367157",
      "title": "Strings of Safety (Percussion)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-033",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "f3191a1a-5e8d-4afe-b638-3add222d52cd",
      "title": "Strings of Safety (Strings)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-034",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    },
{
      "id": "a8834ea5-200b-4206-a812-9780ef336660",
      "title": "Strings of Safety (Synth)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-035",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "f50d1a31-ef72-400a-b8ae-0367849d007d",
      "title": "Strings of Safety (FX)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-036",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "cb581673-23cc-40d6-9f9b-0f76720f0d18",
      "title": "Strings of Safety (Brass)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-037",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }, {
      "id": "d91cfb52-f0a3-4546-bf8a-2ad14c3775a5",
      "title": "Strings of Safety (Woodwinds)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-038",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-06-11T02:40:30.771Z",
      "model": "chirp-ahi-stem-12-t1",
      "state": "succeeded",
      "duration": 154.92
    }
  ]
}

The generated result is similar to the above, which completes the process of separating the originally generated song into stems.

¶ Add Stem

add_stem generates a target instrument or sound track for the specified audio, called via POST /suno/audios.

Required: action, audio_id, stem_type.
Optional: model, prompt, title, style, negative_tags, weirdness, style_influence, audio_weight, max_mode, variety.
Billing: 0.672 Credits in normal mode; 1.344 Credits when max_mode is true.

{
  "action": "add_stem",
  "audio_id": "dead4ee5-df4d-417b-8f7e-717722fae51a",
  "stem_type": "bass",
  "model": "chirp-v6",
  "prompt": "Add warm bass guitar",
  "style": "minimal piano pulse with warm bass guitar",
  "negative_tags": "vocals",
  "variety": "normal",
  "max_mode": false,
  "async": true
}

Final-state response:

{
  "success": true,
  "task_id": "82851953-9590-4334-8bb8-ae30ccadc815",
  "trace_id": "862bbcce-1678-44ff-982d-8b439c126a5e",
  "data": [
    {
      "id": "0adc26ca-2720-4c69-b237-457a986d70e3",
          "audio_url": "https://cdn.acedata2.cloud/suno/0adc26ca-2720-4c69-b237-457a986d70e3.mp3",
      "model": "chirp-v6",
      "state": "succeeded",
      "duration": 12.8
    },
    {
      "id": "e2d39a6c-1d20-4a40-adaf-b2551815d869",
          "audio_url": "https://cdn.acedata2.cloud/suno/e2d39a6c-1d20-4a40-adaf-b2551815d869.mp3",
      "model": "chirp-v6",
      "state": "succeeded",
      "duration": 12.36
    }
  ],
  "cost": {"amount": 0.6048, "currency": "credit", "list_amount": 0.672}
}

¶ Extract Stem

extract_stem extracts the target stem from the specified audio while also returning a complementary version with that stem removed, called via POST /suno/audios.

Required: action, audio_id, stem_type.
Optional: audio_format; the current public dual-channel contract supports only mp3.
Billing: 1.12 Credits.

{
  "action": "extract_stem",
  "audio_id": "dead4ee5-df4d-417b-8f7e-717722fae51a",
  "stem_type": "bass",
  "audio_format": "mp3",
  "async": true
}

The data in the final-state response retains a flat audio list, while stem_sets indicates the correspondence between the target stem and the complementary stem:

{
  "success": true,
  "task_id": "ae9557d0-4ff7-4a35-bcde-d881e78fbfe5",
  "trace_id": "82c51a55-7627-41a5-b72b-1b9775ca25f2",
  "data": [
    {"id":"3084d7e1-4278-4733-8b56-56f7ecf3f859","title":"(Bass)","audio_url":"https://cdn.acedata2.cloud/suno/3084d7e1-4278-4733-8b56-56f7ecf3f859.mp3","model":"chirp-v6","state":"succeeded","duration":12.8,"stem_set":1},
    {"id":"19b83ca9-a51d-494f-a41d-5b0957f3295e","title":"(Without Bass)","audio_url":"https://cdn.acedata2.cloud/suno/19b83ca9-a51d-494f-a41d-5b0957f3295e.mp3","model":"chirp-v6","state":"succeeded","duration":12.8,"stem_set":1},
    {"id":"7eb431e8-f4db-4915-902e-0e89d2b3185a","title":"(Bass)","audio_url":"https://cdn.acedata2.cloud/suno/7eb431e8-f4db-4915-902e-0e89d2b3185a.mp3","model":"chirp-v6","state":"succeeded","duration":12.8,"stem_set":2},
    {"id":"495d29cc-5790-4d0a-8b95-9551a6127b61","title":"(Without Bass)","audio_url":"https://cdn.acedata2.cloud/suno/495d29cc-5790-4d0a-8b95-9551a6127b61.mp3","model":"chirp-v6","state":"succeeded","duration":12.8,"stem_set":2}
  ],
  "stem_sets": [
    {"stem_type":"bass","isolated":{"id":"3084d7e1-4278-4733-8b56-56f7ecf3f859","state":"succeeded","stem_set":1},"remainder":{"id":"19b83ca9-a51d-494f-a41d-5b0957f3295e","state":"succeeded","stem_set":1}},
    {"stem_type":"bass","isolated":{"id":"7eb431e8-f4db-4915-902e-0e89d2b3185a","state":"succeeded","stem_set":2},"remainder":{"id":"495d29cc-5790-4d0a-8b95-9551a6127b61","state":"succeeded","stem_set":2}}
  ],
  "cost": {"amount": 1.008, "currency": "credit", "list_amount": 1.12}
}

¶ Generate Sound Effects

sounds generates one-shot or loopable sound effects based on text descriptions, called via POST /suno/audios.

Required: action, sound, sound_type.
Optional: model, bpm, key, audio_format; audio_format currently only supports mp3.
sound_type: one-shot or loop.
Billing: 0.112 Credits.

{
  "action": "sounds",
  "sound": "single soft analog synth pluck, no reverb",
  "sound_type": "one-shot",
  "model": "chirp-v6",
  "bpm": 120,
  "key": "C",
  "audio_format": "mp3",
  "async": true
}

{
  "success": true,
  "task_id": "f6716546-d118-40a0-ad15-09999f9f22ba",
  "trace_id": "da4c7895-e494-4bd8-83bd-132e006c94e3",
  "data": [
    {"id":"b3cd3e7d-96e4-48ef-abde-73c7ddee8b4a","title":"single soft analog synth pluck, no reverb","audio_url":"https://cdn.acedata2.cloud/suno/b3cd3e7d-96e4-48ef-abde-73c7ddee8b4a.mp3","model":"chirp-v6","state":"succeeded","duration":10},
    {"id":"f1517867-b76a-4cdf-b006-9ce6e653e0a5","title":"single soft analog synth pluck, no reverb","audio_url":"https://cdn.acedata2.cloud/suno/f1517867-b76a-4cdf-b006-9ce6e653e0a5.mp3","model":"chirp-v6","state":"succeeded","duration":10}
  ],
  "cost": {"amount": 0.1008, "currency": "credit", "list_amount": 0.112}
}

¶ Adjust Audio Speed

adjust_speed adjusts the playback speed of specified audio, called via POST /suno/audios.

Required: action, audio_id, speed_multiplier, title.
Optional: keep_pitch.
speed_multiplier: range 0.25–4.
Billing: 0.28 Credits.

{
  "action": "adjust_speed",
  "audio_id": "dead4ee5-df4d-417b-8f7e-717722fae51a",
  "speed_multiplier": 1.1,
  "keep_pitch": true,
  "title": "Suno contract verification speed 1.1x",
  "async": true
}

The source audio duration is 9.8 seconds, and the 1.1x speed result is 8.909090909 seconds:

{
  "success": true,
  "task_id": "c5860fdd-76b1-40a1-b5b5-ec047e471c8a",
  "trace_id": "292ed097-3631-441c-ac80-52f326b62726",
  "data": [
    {
      "id": "02534b52-45a7-4961-834a-f473a407e62c",
      "title": "Suno contract verification speed 1.1x",
      "audio_url": "https://cdn.acedata2.cloud/suno/02534b52-45a7-4961-834a-f473a407e62c.mp3",
      "model": "chirp-v6",
      "state": "succeeded",
      "duration": 8.909090909090908
    }
  ],
  "cost": {"amount": 0.252, "currency": "credit", "list_amount": 0.28}
}

The generation model has randomness. The API guarantees consistent parameter semantics, task status, and response structure, but does not guarantee that different requests generate exactly the same waveform.

¶ Advanced Parameters for Custom Generation

The official version allows the use of advanced parameters weirdness==>Weirdness, style_influence==>Style Influence, and audio_weight==>Audio Influence for generation in custom mode, corresponding to the following official examples:

The ranges of the advanced parameters are all between 0 and 1, and the specific parameters are shown in the figure below:

After completing the fields, the code is automatically generated as follows:

Corresponding Python code:

import requests

url = "https://api.acedata.cloud/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "generate",
    "model": "chirp-v4-5",
    "lyric": "Hello Hello Hello ",
    "custom": True,
    "weirdness": 0.4,
    "style_influence": 0.4,
    "audio_weight": 0.4
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you will find that you get a result as follows:

{
  "success": true,
  "task_id": "2f3aa682-e1a7-43a9-9fbb-ed0ce8668a4b",
  "trace_id": "07408194-7deb-4a52-a36d-9a9a13143b5f",
  "data": [
    {
      "id": "c66e2077-7580-43f2-9937-c67a8afcd8bd",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-039",
      "lyric": "Hello Hello Hello ",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-07-10T12:54:35.199Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 187.92
    },
    {
      "id": "a922f97b-307c-4c4d-aae3-a47ba8202a10",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-040",
      "lyric": "Hello Hello Hello ",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-07-10T12:54:35.199Z",
      "model": "chirp-auk",
      "state": "succeeded",
      "style": "",
      "duration": 229.64
    }
  ]
}

In this way, advanced parameters are used to generate a custom song, and the result is similar to the above.

¶ Control Song Duration

By default, the duration of a generated song is determined by the model itself, usually between 30 seconds and 4 minutes. If a longer or shorter finished product is needed, you can specify the desired duration through the duration parameter, in seconds, with an integer value between 10 and 360.

This parameter is used for song generation in custom mode (where custom is true). It should be particularly noted that duration is a preference prompt, not a hard constraint: the model will refer to this value when creating, but it does not guarantee that it will be achieved. In actual testing, the actual duration is usually significantly shorter than the desired value, and the durations of the two songs returned by the same request may also differ by several times. Even for exactly the same request, the durations obtained from multiple submissions may vary greatly. Therefore, do not use it as precise duration control. If a fixed duration is required for business purposes, please trim it yourself or retry after obtaining the finished product.

The corresponding Python code:

import requests

url = "https://api.acedata.cloud/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "generate",
    "model": "chirp-v5-5",
    "custom": True,
    "title": "Under the City Lights",
    "style": "lo-fi piano",
    "lyric": "[Verse]\nSunrise creepin\nGold on the floor\n[Chorus]\nUnder the city lights\n",
    "duration": 330
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

It should be noted that the duration in the request is the desired duration, while the duration field for each song in the response data is the actual duration of that song. They have the same name but different meanings, and the actual duration is not guaranteed to equal the desired value. Lyric length is one of the main factors affecting the duration of the finished product. If a longer finished product is needed, it is recommended to also provide more complete lyrics.

The API will validate that duration must be an integer between 10 and 360; it is still only a generation target, not a guarantee of the finished product's length.

¶ Add Instrumental Feature

In August 2025, Suno introduced the Add Instrumental feature. First, you need to upload an a cappella song without accompaniment, and let Suno add music for you. First, you can go to the Suno Upload API to upload an a cappella song without accompaniment. The corresponding operation is shown in the figure below:

Then you need to record the uploaded audio_id. The specific result is shown in the figure below:

Finally, an audio_id is obtained: 92254cab-3372-4d9e-bce9-cdcfdbc39070. Then we also need to fill in the following parameters:

action: The content is underpainting.
underpainting_start: The start time for adding accompaniment to the uploaded song. The default value is 0.
underpainting_end: The end time for adding accompaniment to the uploaded song. It must be less than the total duration of the song.
audio_id: The ID of the uploaded a cappella song without accompaniment.
style: The style of the accompaniment. It is best not to use lyrics since it is accompaniment.

After filling them in, the code is automatically generated as follows:

The corresponding Python code:

import requests

url = "https://api.acedata.cloud/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "underpainting",
    "model": "chirp-v4-5",
    "style": "Pop rap, uplifting, magnetic male vocals, piano, synth, electric guitar, driving bass, clear structure",
    "audio_id": "92254cab-3372-4d9e-bce9-cdcfdbc39070",
    "underpainting_end": 120
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you will find that you get a result as follows:

{
  "success": true,
  "task_id": "822d2e14-c535-4d48-a4e5-1b6ab00b04a7",
  "trace_id": "257eac2c-8e4f-44d0-8454-5e215111eefa",
  "data": [
    {
      "id": "2788cd21-bd84-422d-beb5-859c60fbf5b6",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-041",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-08-27T15:25:42.548Z",
      "model": "chirp-v4",
      "state": "succeeded",
      "style": "Pop rap, uplifting, magnetic male vocals, piano, synth, electric guitar, driving bass, clear structure",
      "duration": 10.16
    },
    {
      "id": "a4bb7220-e971-4cbf-a626-b86c648bcf55",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-042",
      "lyric": "",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-08-27T15:25:42.548Z",
      "model": "chirp-v4",
      "state": "succeeded",
      "style": "Pop rap, uplifting, magnetic male vocals, piano, synth, electric guitar, driving bass, clear structure",
      "duration": 2.52
    }
  ]
}

This completes the operation of adding accompaniment to the uploaded a cappella song without accompaniment, and the result is similar to the above.

¶ Add Vocals Feature

In August 2025, Suno introduced the Add Vocals feature. First, you need to upload an instrumental track, allowing Suno to write lyrics and generate vocal singing. You can first upload an a cappella song without accompaniment through the Suno Upload API. The corresponding operation is shown in the figure below:

Then you need to record the uploaded audio_id. The specific result is shown in the figure below:

Finally, an audio_id is obtained: 92254cab-3372-4d9e-bce9-cdcfdbc39070. Then we also need to fill in the following parameters:

action: The content is overpainting.
overpainting_start: The start time for adding vocals to the uploaded song. The default value is 0.
overpainting_end: The end time for adding vocals to the uploaded song, which must be less than the total duration of the song.
audio_id: The ID of the uploaded a cappella song without accompaniment.
custom: In this mode, custom mode must be used to enter lyrics.
lyric: The lyrics entered in custom mode.
style: The style of the accompaniment.

After filling them in, the code is automatically generated as follows:

The corresponding Python code:

import requests

url = "https://api.acedata.cloud/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "overpainting",
    "model": "chirp-v4-5",
    "lyric": "Yea your were the best I could get \\nBut I knew that it couldn’t last \\nStayed down since we were friends \\nHad to leave those thoughts in the past \\nMade like 40k just last week \\nOn top of the 20 with my babe\\ndon’t care for what niggas say",
    "custom": True,
    "audio_id": "92254cab-3372-4d9e-bce9-cdcfdbc39070",
    "overpainting_end": 120
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can see that a result will be obtained as follows:

{
  "success": true,
  "task_id": "31bb250e-6614-49ec-ac85-631f224daeba",
  "trace_id": "efe8e7f3-9a65-4f13-a9f8-51e8478899df",
  "data": [
    {
      "id": "a597f945-64df-4722-a631-d436450832bd",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-043",
      "lyric": "Yea your were the best I could get \\nBut I knew that it couldn’t last \\nStayed down since we were friends \\nHad to leave those thoughts in the past \\nMade like 40k just last week \\nOn top of the 20 with my babe\\ndon’t care for what niggas say",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-08-27T15:33:51.550Z",
      "model": "chirp-v4",
      "state": "succeeded",
      "style": "",
      "duration": 105.32
    },
    {
      "id": "b41a8b91-3d88-4ebd-a6cf-732764b24954",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-044",
      "lyric": "Yea your were the best I could get \\nBut I knew that it couldn’t last \\nStayed down since we were friends \\nHad to leave those thoughts in the past \\nMade like 40k just last week \\nOn top of the 20 with my babe\\ndon’t care for what niggas say",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-08-27T15:33:51.550Z",
      "model": "chirp-v4",
      "state": "succeeded",
      "style": "",
      "duration": 148.16
    }
  ]
}

This completes the operation of adding vocals to the uploaded a cappella song without accompaniment, and the result is similar to the above.

¶ Remaster Feature

In December 2025, Suno introduced the Remaster feature. This feature can regenerate songs and cannot be used across accounts. Then we also need to fill in the following parameters:

action: The content is remaster.
audio_id: The ID of the song that needs to be regenerated.
model: Only v4.5+ and v5 are supported.
variation_category: Only supported in v5 and above, and there are only 3 values: high, normal, subtle.

After filling them in, the code is automatically generated as follows:

The corresponding Python code:

import requests

url = "https://api.acedata.cloud/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "remaster",
    "variation_category": "high",
    "audio_id": "21fd46d4-45c3-4826-bec9-3f3df667902e"
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can see that a result will be returned, as follows:

{
  "success": true,
  "task_id": "791ee74c-9363-4352-afe7-babb19b89899",
  "trace_id": "77acda57-c3d4-4e11-a506-4f50e0609916",
  "data": [
    {
      "id": "b0515cdf-9cb5-46cd-b0fe-10a239dc9274",
      "title": "Navidad en costura  (Remastered)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-045",
      "image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-046",
      "lyric": "En Teror las clases siguen,\nni en Navidad hay parón;\ncose el grupo entre villancicos\ny un buen trocito de turrón.\nLa Popular abre sus puertas,\ny el taller suena mejor;\nhilo, aguja y canto alegre\nlo pasaremos mejor\nSeguimos en las costuras,\ncon música y diversión;\nlos alumnos comeremos\nGolosinas un montón ",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-12-04T13:09:59.936Z",
      "model": "chirp-v4",
      "state": "succeeded",
      "style": "Villancico",
      "duration": 32.2
    },
    {
      "id": "06edab94-a4f9-4c0c-abac-a2e8a97c76a8",
      "title": "Navidad en costura  (Remastered)",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-047",
      "image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-048",
      "lyric": "En Teror las clases siguen,\nni en Navidad hay parón;\ncose el grupo entre villancicos\ny un buen trocito de turrón.\nLa Popular abre sus puertas,\ny el taller suena mejor;\nhilo, aguja y canto alegre\nlo pasaremos mejor\nSeguimos en las costuras,\ncon música y diversión;\nlos alumnos comeremos\nGolosinas un montón ",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2025-12-04T13:09:59.936Z",
      "model": "chirp-v4",
      "state": "succeeded",
      "style": "Villancico",
      "duration": 32.2
    }
  ]
}

This completes the operation of regenerating an already generated song, and the result is similar to the above.

¶ Mashup Music Generation Feature

In December 2025, Suno released the new Mashup feature. This feature can generate a song based on two reference songs, and then we also need to fill in the following parameters:

action: The content is mashup.
mashup_audio_ids: The IDs of the two reference songs.

After filling them in, the code is automatically generated as follows:

The corresponding Python code:

import requests

url = "https://api.acedata.cloud/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "mashup",
    "lyric": "Sambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nSambuy come, Sambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\nSambuy come back",
    "model": "chirp-v4-5",
    "custom": True,
    "instrumental": False,
    "mashup_audio_ids": ["9f102969-0024-479e-b38f-c0c5db21383d","6aebb715-701c-433f-b976-a7ff5cf16255"]
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can see that a result will be returned, as follows:

{
  "success": true,
  "task_id": "3fe070eb-2ab1-4424-909c-acfe3ca761af",
  "trace_id": "2b220382-7a84-4853-ae43-05cdcad233a9",
  "data": [
    {
      "id": "5ff751dc-0e72-4de9-a54b-2cad50984b47",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-049",
      "image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-050",
      "lyric": "Sambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nSambuy come, Sambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\nSambuy come back",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2026-01-25T15:13:30.181Z",
      "model": "chirp-v4-5",
      "state": "succeeded",
      "style": "",
      "duration": 219.08
    },
    {
      "id": "19c515c4-d7b3-4a17-8ab0-dd1ebd4861b8",
      "title": "",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-051",
      "image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-052",
      "lyric": "Sambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nSambuy come, Sambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\n\\nSambuy come  \\nSambuy come back  \\nBluespawn, greenspawn are making you a spawn  \\nSambuy come back",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "",
      "created_at": "2026-01-25T15:13:30.181Z",
      "model": "chirp-v4-5",
      "state": "succeeded",
      "style": "",
      "duration": 163.12
    }
  ]
}

This completes the operation of generating a remix based on a reference song, and the result is similar to the above.

¶ Samples: Generate Songs from Samples

The samples here refers to sampling a segment from a single audio file: select a start and end time from an existing audio file, and use that segment as sample material for creation. It differs from the Inspo inspiration creation feature below, which uses 1 to 4 complete reference audio files. The following parameters need to be filled in:

action: The value is samples.
samples_start: Sample start time (seconds), defaults to 0 and must not be less than 0.
samples_end: Sample end time (seconds), required and must be greater than the start time.
audio_id: The ID of the reference song to be sampled.

After filling them in, the code is automatically generated as follows:

The corresponding Python code:

import requests

url = "https://api.acedata.cloud/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "samples",
    "model": "chirp-v5",
    "lyric": "[Verse 1]\\nPhone lit up\\nHeadline in my hand\\nFeels made up\\nStill says “you won’t understand”\\nYour name\\nMy name\\nSide by side in the scroll\\nCold black text\\nOn a story I used to hold\\n\\n[Chorus]\\nYou’re breaking news\\nAnd I’m just breaking\\nFront-page truth\\nHeart still shaking\\nEverybody reads\\nWhat we already knew\\nYou’re a story now\\nAnd I’m the one you broke it to\\n\\n[Verse 2]\\nNeighbors talk\\nThrough a half-closed door\\nCoffee cools\\nOn a cracked old floor\\nYour suitcase snaps\\nLike a camera flash\\nOne last quote\\nThen you cut to black\\n\\n[Chorus]\\nYou’re breaking news\\nAnd I’m just breaking\\nFront-page truth\\nHeart still shaking\\nEverybody reads\\nWhat we already knew\\nYou’re a story now\\nAnd I’m the one you broke it to\\n\\n[Bridge]\\nIs there a line\\nWhere we rewind\\nOr just a feed\\nThat leaves us behind\\nTell me\\nWho gets\\nThe final view\\nWhen I stop trending\\nWith you\\n\\n[Chorus]\\nYou’re breaking news\\nAnd I’m just breaking\\nFront-page truth\\nHeart still shaking\\nEverybody reads\\nWhat we already knew\\nYou’re a story now\\nAnd I’m the one you broke it to (yeah)",
    "custom": True,
    "instrumental": False,
    "audio_id": "0fa07665-6b8e-4a8b-8bd3-7e0cfcdada88",
    "samples_end": 102.16,
    "samples_start": 59.88
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

Click Run, and you can see that a result will be returned, as follows:

{
    "success": true,
    "task_id": "12135a45-6384-4683-9bb1-64f19933915a",
    "trace_id": "683e559d-340e-4c72-8fae-e683442ac7e9",
    "data": [
        {
            "id": "9a0b680f-a9ea-4a36-8695-8ea777ab6ee7",
            "title": "Whistle in the Wind",
            "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-053",
            "image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-054",
            "lyric": "[Verse 1]\nPhone lit up\nHeadline in my hand\nFeels made up\nStill says “you won’t understand”\nYour name\nMy name\nSide by side in the scroll\nCold black text\nOn a story I used to hold\n[Chorus]\nYou’re breaking news\nAnd I’m just breaking\nFront-page truth\nHeart still shaking\nEverybody reads\nWhat we already knew\nYou’re a story now\nAnd I’m the one you broke it to\n[Verse 2]\nNeighbors talk\nThrough a half-closed door\nCoffee cools\nOn a cracked old floor\nYour suitcase snaps\nLike a camera flash\nOne last quote\nThen you cut to black\n[Chorus]\nYou’re breaking news\nAnd I’m just breaking\nFront-page truth\nHeart still shaking\nEverybody reads\nWhat we already knew\nYou’re a story now\nAnd I’m the one you broke it to\n[Bridge]\nIs there a line\nWhere we rewind\nOr just a feed\nThat leaves us behind\nTell me\nWho gets\nThe final view\nWhen I stop trending\nWith you\n[Chorus]\nYou’re breaking news\nAnd I’m just breaking\nFront-page truth\nHeart still shaking\nEverybody reads\nWhat we already knew\nYou’re a story now\nAnd I’m the one you broke it to (yeah)",
            "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
            "video_url": "",
            "created_at": "2026-01-31T14:34:45.043Z",
            "model": "chirp-v5",
            "state": "succeeded",
            "style": "acoustic with a hint of optimism,folk-pop,female vocals",
            "duration": 176.92
        },
        {
            "id": "66473dee-3aaf-43b2-80fd-76568b3abbb1",
            "title": "Whistle in the Wind",
            "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-055",
            "image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-056",
            "lyric": "[Verse 1]\nPhone lit up\nHeadline in my hand\nFeels made up\nStill says “you won’t understand”\nYour name\nMy name\nSide by side in the scroll\nCold black text\nOn a story I used to hold\n[Chorus]\nYou’re breaking news\nAnd I’m just breaking\nFront-page truth\nHeart still shaking\nEverybody reads\nWhat we already knew\nYou’re a story now\nAnd I’m the one you broke it to\n[Verse 2]\nNeighbors talk\nThrough a half-closed door\nCoffee cools\nOn a cracked old floor\nYour suitcase snaps\nLike a camera flash\nOne last quote\nThen you cut to black\n[Chorus]\nYou’re breaking news\nAnd I’m just breaking\nFront-page truth\nHeart still shaking\nEverybody reads\nWhat we already knew\nYou’re a story now\nAnd I’m the one you broke it to\n[Bridge]\nIs there a line\nWhere we rewind\nOr just a feed\nThat leaves us behind\nTell me\nWho gets\nThe final view\nWhen I stop trending\nWith you\n[Chorus]\nYou’re breaking news\nAnd I’m just breaking\nFront-page truth\nHeart still shaking\nEverybody reads\nWhat we already knew\nYou’re a story now\nAnd I’m the one you broke it to (yeah)",
            "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
            "video_url": "",
            "created_at": "2026-01-31T14:34:45.043Z",
            "model": "chirp-v5",
            "state": "succeeded",
            "style": "acoustic with a hint of optimism,folk-pop,female vocals",
            "duration": 177.48
        }
    ]
}

This completes the operation of generating songs from samples, and the result is similar to the above.

¶ Inspo Inspiration Creation Feature

The Inspo inspiration creation feature can generate new music based on 1 to 4 complete reference audio clips, supporting dragging or uploading audio as an inspiration source. The API uses the existing inspo action: the client provides publicly accessible audio URLs, and the service automatically completes reference audio preparation and creation, without requiring the client to separately read lyrics, style, or duration before assembling the request. It differs from the interval sampling above, and also differs from Cover, which replicates the original song's style. The following parameters need to be filled in when using it:

action: The content is inspo.
audio_urls: A list of URLs for reference audio, requiring 1 to 4 publicly accessible audio addresses.
model: The model used; chirp-v6 is recommended.
prompt: Lyrics or creation prompt (optional).
instrumental: When set to true, it generates according to an instrumental music request and does not use lyrics.
persona_id: Use the specified voice on service channels that support this combination; the reference audio will be bound during the preparation stage to the resource environment required by that voice.
lyric_prompt: Used to automatically generate lyrics when custom=true and no lyric is provided.

Note: Reference audio must be publicly accessible audio files. If the reference audio exactly matches a known recording in the platform's music library, Suno may reject generation due to copyright verification. It is recommended to use audio you own or audio generated by Suno as the inspiration source.

The corresponding Python code:

import requests

url = "https://api.acedata.cloud/suno/audios"

headers = {
    "accept": "application/json",
    "authorization": "Bearer {token}",
    "content-type": "application/json"
}

payload = {
    "action": "inspo",
    "model": "chirp-v6",
    "audio_urls": [
        "https://cdn.acedata.cloud/uploads/a0bc051f-42c2-4a46-aeb4-582dcc884ad2"
    ],
    "prompt": "Rework these references as warm acoustic folk with soft vocals"
}

response = requests.post(url, json=payload, headers=headers)
print(response.text)

A verified historical response snapshot is retained below; the snapshot used chirp-v5 at the time, while chirp-v6 is currently recommended for request examples, and the returned structure is consistent:

{
    "success": true,
    "task_id": "725e6b41-78d0-4adf-856c-05e81098c029",
    "trace_id": "8c2f0b3e-2f6a-4738-8b1d-c58068ca3dab",
    "data": [
        {
            "id": "20ca5628-86e0-4c32-8ae4-9f0c481e45f3",
            "title": "Inspo Demo",
            "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-057",
            "lyric": "",
            "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
            "video_url": "",
            "created_at": "2026-06-18T13:01:53.910Z",
            "model": "chirp-v5",
            "state": "succeeded",
            "style": "acoustic, folk, warm",
            "duration": 36.92
        },
        {
            "id": "8744a796-9961-45af-868d-4f3bc1c44257",
            "title": "Inspo Demo",
            "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-058",
            "lyric": "",
            "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
            "video_url": "",
            "created_at": "2026-06-18T13:01:53.910Z",
            "model": "chirp-v5",
            "state": "succeeded",
            "style": "acoustic, folk, warm",
            "duration": 84.16
        }
    ]
}

This completes the inspiration creation operation, and the returned result is consistent with regular song generation.

¶ Asynchronous Callback

Since Suno takes a relatively long time to generate music, approximately 1–2 minutes, if the API remains unresponsive for a long time, the HTTP request will keep the connection open, resulting in additional system resource consumption. Therefore, this API also provides support for asynchronous callbacks.

The overall process is: when the client initiates a request, it additionally specifies a callback_url field. After the client initiates the API request, the API immediately returns a result containing a task_id field, representing the current task ID. When the task is completed, the result of the generated music will be sent in POST JSON format to the callback_url specified by the client, which also includes the task_id field, so that task results can be associated through the ID.

Below, we will use an example to understand how to operate specifically.

First, a Webhook callback is a service that can receive HTTP requests. Developers should replace it with the URL of their own HTTP server. For convenience of demonstration, a public Webhook example website https://webhook.site/ is used here. Open this website to obtain a Webhook URL, as shown in the figure:

Copy this URL, and it can be used as a Webhook. The example here is https://webhook.site/03e60575-3d96-4132-b681-b713d78116e2.

Next, we can set the callback_url field to the above Webhook URL, while also filling in prompt, as shown in the figure:

Click Run, and you will find that a result is returned immediately, as follows:

{
  "task_id": "44472ab8-783b-4054-b861-5bf14e462f60"
}

After waiting for a moment, we can observe the result of the generated song at https://webhook.site/03e60575-3d96-4132-b681-b713d78116e2, as shown in the figure:

The content is as follows:

{
  "success": true,
  "task_id": "44472ab8-783b-4054-b861-5bf14e462f60",
  "data": [
    {
      "id": "da4324e5-84b2-484b-b0e9-dd261381c594",
      "title": "Winter Whispers",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-059",
      "lyric": "[Verse]\nSnow falling gently from the sky\nChildren giggling as they pass by\nFire crackling\nCozy and warm\nChristmas spirit begins to swarm\n[Verse 2]\nTwinkling lights\nA sight to behold\nStockings hung\nWaiting to be filled with gold\nGifts wrapped with love\nPiled high\nExcitement in the air\nYou can't deny\n[Chorus]\nWinter whispers in the wind\nJoy and love it brings\nLet's celebrate this season\nWith the ones we're missing",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "https://cdn.acedata.cloud/assets/examples/gemini/04a043bd-6b23-4b4e-945c-ce48158c3eee-3a89912507c7.mp4?example=video-003",
      "created_at": "2024-05-11T07:33:05.430Z",
      "model": "chirp-v3",
      "prompt": "A song for Christmas",
      "style": "pop"
    },
    {
      "id": "b878a87b-a0db-4046-8ccd-ecd2fb3d4372",
      "title": "Winter Whispers",
      "image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-060",
      "lyric": "[Verse]\nSnow falling gently from the sky\nChildren giggling as they pass by\nFire crackling\nCozy and warm\nChristmas spirit begins to swarm\n[Verse 2]\nTwinkling lights\nA sight to behold\nStockings hung\nWaiting to be filled with gold\nGifts wrapped with love\nPiled high\nExcitement in the air\nYou can't deny\n[Chorus]\nWinter whispers in the wind\nJoy and love it brings\nLet's celebrate this season\nWith the ones we're missing",
      "audio_url": "https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3",
      "video_url": "https://cdn.acedata.cloud/assets/examples/gemini/04a043bd-6b23-4b4e-945c-ce48158c3eee-3a89912507c7.mp4?example=video-004",
      "created_at": "2024-05-11T07:33:05.430Z",
      "model": "chirp-v3",
      "prompt": "A song for Christmas",
      "style": "pop"
    }
  ]
}

It can be seen that there is a task_id field in the result. The other fields are similar to those above, and task association can be achieved through this field.

Of course, we can also obtain the result through streaming calls. We only need to set the value of accept in the request header to application/x-ndjson. Below, an example input is used as a demonstration:

During the waiting process, we can obtain the following output:

{"success":true,"task_id":"1af4b454-ce84-4512-a0a2-de3f8574ecd8","data":[{"id":"1f610752-f426-4fd5-89a8-ba2ad0370881","title":"Snowflakes and Mistletoe","lyric":"[Verse]\nLights are tangled on the tree again\nThe cat’s knocked over the wreath\nCookies burning in the oven too\nBut I’m still grinning through my teeth\n[Prechorus]\nSnow is falling like glitter in the sky\nI’ve got a feeling this year’s gonna fly\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe\n[Verse 2]\nGrandma’s singing a little off-key\nThe kids are laughing too loud\nThe dog’s stolen a turkey leg\nChaos is a Christmas crowd\n[Prechorus]\nBut the fire’s crackling\nWarm and bright\nAnd my heart’s a candle tonight\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe","audio_url":"","video_url":"","created_at":"2025-12-13T11:29:25.101Z","model":"chirp-v5","state":"pending","prompt":"A song for Christmas","style":"uplifting, orchestral with bells and acoustic guitar"},{"id":"d1a3109d-799b-401e-b032-4b501bcf26f3","title":"Snowflakes and Mistletoe","lyric":"[Verse]\nLights are tangled on the tree again\nThe cat’s knocked over the wreath\nCookies burning in the oven too\nBut I’m still grinning through my teeth\n[Prechorus]\nSnow is falling like glitter in the sky\nI’ve got a feeling this year’s gonna fly\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe\n[Verse 2]\nGrandma’s singing a little off-key\nThe kids are laughing too loud\nThe dog’s stolen a turkey leg\nChaos is a Christmas crowd\n[Prechorus]\nBut the fire’s crackling\nWarm and bright\nAnd my heart’s a candle tonight\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe","audio_url":"","video_url":"","created_at":"2025-12-13T11:29:25.101Z","model":"chirp-v5","state":"pending","prompt":"A song for Christmas","style":"uplifting, orchestral with bells and acoustic guitar"}]}
{"success":true,"task_id":"1af4b454-ce84-4512-a0a2-de3f8574ecd8","trace_id":"4440342a-41c4-4140-8bb1-3537a598ca2e","data":[{"id":"1f610752-f426-4fd5-89a8-ba2ad0370881","title":"Snowflakes and Mistletoe","image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-073","image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-074","lyric":"[Verse]\nLights are tangled on the tree again\nThe cat’s knocked over the wreath\nCookies burning in the oven too\nBut I’m still grinning through my teeth\n[Prechorus]\nSnow is falling like glitter in the sky\nI’ve got a feeling this year’s gonna fly\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe\n[Verse 2]\nGrandma’s singing a little off-key\nThe kids are laughing too loud\nThe dog’s stolen a turkey leg\nChaos is a Christmas crowd\n[Prechorus]\nBut the fire’s crackling\nWarm and bright\nAnd my heart’s a candle tonight\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe","audio_url":"https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3","video_url":"","created_at":"2025-12-13T11:29:25.101Z","model":"chirp-v5","state":"succeeded","prompt":"A song for Christmas","style":"uplifting, orchestral with bells and acoustic guitar","duration":129.92},{"id":"d1a3109d-799b-401e-b032-4b501bcf26f3","title":"Snowflakes and Mistletoe","image_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-075","image_large_url": "https://cdn.acedata.cloud/e724d7f13d.png?example=image-076","lyric":"[Verse]\nLights are tangled on the tree again\nThe cat’s knocked over the wreath\nCookies burning in the oven too\nBut I’m still grinning through my teeth\n[Prechorus]\nSnow is falling like glitter in the sky\nI’ve got a feeling this year’s gonna fly\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe\n[Verse 2]\nGrandma’s singing a little off-key\nThe kids are laughing too loud\nThe dog’s stolen a turkey leg\nChaos is a Christmas crowd\n[Prechorus]\nBut the fire’s crackling\nWarm and bright\nAnd my heart’s a candle tonight\n[Chorus]\nSnowflakes and mistletoe\nEverywhere I go\nI know\nLove is the gift\nThe glow\nSnowflakes and mistletoe","audio_url":"https://cdn.acedata.cloud/assets/examples/fish/5ade0339-5f11-487e-aacc-06a908271706-8e3fcb0e5547.mp3","video_url":"","created_at":"2025-12-13T11:29:25.101Z","model":"chirp-v5","state":"succeeded","prompt":"A song for Christmas","style":"uplifting, orchestral with bells and acoustic guitar","duration":127.16}]}

The streaming response will sequentially push the processing status and final result for the same task_id; above, only the first and final two actual responses are retained, with repeated intermediate updates omitted.

¶ Error Handling

If an error occurs, you will receive an error message similar to the following:

{
  "success": false,
  "error": {
    "code": "forbidden",
    "message": "Song Description contained artist name: eminem"
  },
  "trace_id": "9bb7c2f4-3b7b-4965-b50a-f663874b1b6f",
  "task_id": "9bb3a2a6-c438-436d-a9f3-fa466abc077c"
}

Below is the list of HTTP Status Code, error.code, and error.message:

Note: The quotas and error messages | Status Code | error.code | ----------- | ----------------------------- | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 400 | bad_request | 403 | forbidden | 403 | forbidden | 403 | forbidden | 403 | forbidden | 403 | forbidden | 403 | forbidden | 403 | forbidden | 403 | forbidden | 403 | forbidden | 403 | forbidden | 500 | api_error | 500 | api_error | 500 | api_error | 500 | api_error | 500 | api_error | 500 | suno_processing_un | 500 | suno_model_unavailable | 500 | suno_processing_failed | 504 | timeout of different upstream accounts may vary. Usually, chirp-v3-5/chirp-v4 have lower style limits (200), while chirp-v4-5 and above usually support up to 1000; when hitting an older upstream, compatibility messages such as Tags too long. or style must be less than or equal 120 may appear. | error.message | | ------------------------------------------------------------------------------------------ | | The song ID does not exist or has been taken offline. | | Prompt too long. | | Tags too long. | | Uploaded audio matches an existing work of art. | | instrumental must be a boolean | | Title too long. | | Topic too long. | | style must be less than or equal to 120 | | custom must be a boolean | | audio_id is required when extending audio | | continue_at is required when extending audio | | continue_at must be a number greater than 0 | | lyric is required when extending audio and instrumental is false | | prompt is required when generating audio | | lyric is required when generating custom audio | | Prompt likely malformed | | Prompt likely copyrighted | | Prompt contained inappropriate material | | Song Description flagged for moderation | | Song Description contained artist name | | Tags contained artist name | | Lyrics contained copyrighted material | | Song Description contained producer tag | | Generic OpenAI error | | Prompt flagged for moderation | | Unable to generate lyrics from song description | | job failed with unknown error | | no available worker in system | | service under maintenance, generation paused | | the account may have been offline | available | Music processing is unavailable. Contact support with the trace ID. | | The selected model is unavailable for this operation. Contact support with the trace ID. | | Music processing returned no audio. Contact support with the trace ID. | | timeout while waiting for audio generation |