Seedream API · Ace Data Cloud

Seedream API
ByteDance AI Image Generation

Name: ByteDance Seedream Image Generation
Brand: Ace Data Cloud

Generate images using ByteDance Seedream model through simple API calls. Supports text-to-image, image editing—up to 4K resolution, multiple model options, pay-as-you-go.

📄 View Documentation 💰 View Pricing

🎨 6 Models 📐 Up to 4K 💰 Starting at $0.032 ✏️ Text-to-Image + Image Editing

🎨

Model Versions

📐

Maximum Resolution

💰

$0.032

Starting Price

✏️

Editing

Supports Image Editing

Why Choose Seedream?

Seedream is an AI image generation model launched by ByteDance, known for its excellent image quality, precise text understanding, and rich aesthetic expression. The Seedream 5.0 series ranks among the industry leaders in multiple image generation benchmark tests, especially excelling in understanding Chinese prompts.

Ace Data Cloud provides comprehensive Seedream API proxy services—you do not need to apply for a ByteDance API account or resolve regional restrictions. High-quality images can be generated through a simple REST API, supporting both text generation and image editing capabilities.

Seedream API Core Features

From text descriptions to beautiful images—Seedream provides comprehensive image generation and editing capabilities

✍️

Text to Image (T2I)

Generate high-quality images by inputting text descriptions. Supports prompts in both Chinese and English, with precise understanding of complex semantics and detailed, realistic visuals.

✏️

Image Editing (I2I)

Upload the original image and describe the editing intent; the SeedEdit model can intelligently modify the image content while maintaining overall style consistency.

📐

Multi-Resolution Support

Supports 1K, 2K, 4K, and adaptive multiple resolutions. From quick previews to print-quality, flexibly meets different needs.

🧩

Continuous Image Generation

Enable the sequential_image_generation option to generate a series of stylistically consistent images, suitable for comics and storyboards.

🔄

Streamed Output

Supports stream mode, gradually returning generated results. Significantly optimizes user waiting experience in high-resolution scenarios.

💧

Watermark Control

Flexibly control whether to add an AI-generated watermark through the watermark parameter, meeting compliance needs for different usage scenarios.

Python

import requests
response = requests.post(
    "https://api.acedata.cloud/seedream/images",
    headers={
        "Authorization": "Bearer YOUR_API_KEY",
        "Content-Type": "application/json"
    },
    json={
        "model": "doubao-seedream-5-0-pro-260628",
        "prompt": "a white siamese cat"
    }
)
data = response.json()
print(data)
# {
#   "success": true,
#   "task_id": "c0aae74d-4442-4563-b620-3da86bae5434",
#   "trace_id": "581c4721-83e2-41a3-b7d8-b64378604bed",
#   "data": [
#     {
#       "prompt": "a white siamese cat",
#       "size": "1024x1024",
#       "image_url": "https://platform.cdn.acedata.cloud/seedream/819386b9-fab6-4bf3-acc6-df29f53c7248.jpg"
#     }
#   ]
# }

Generate AI Images with One Line of Code

Send a POST request with the text prompt to instantly get the generated high-quality image.

Prepare Request Parameters

Select the model and provide the text prompt prompt, optional resolution and seed parameters

Send Generation Request

POST to /seedream/images, directly returns the image URL of the generated result

Or Use Callback Notification

Set callback_url, which will actively POST to notify your server after generation is complete

What can Seedream be used for?

From creative design to commercial applications—Seedream is being used in these scenarios

📱

Social Media Content

Quickly generate eye-catching social media images, cover photos, and post graphics

🛍️

E-commerce Materials

Batch generate product display images, scene images, and advertising creative materials to reduce design costs

🎮

Game & Concept Design

Generate game characters and scene concept art—quickly validate ideas and visual style directions

📰

Content Illustrations

Automatically generate matching high-quality illustrations for articles, blogs, news, and other content

Quick Start in 3 Steps

From registration to generating the first image, it only takes a few minutes

Register and Get API Key

Create a free account on Ace Data Cloud and generate your Bearer Token from the console.

Send Image Generation Request

POST to /seedream/images, passing in the text prompt and model name.

Get Generation Results

Directly obtain the generated image URL from the response, download, and use it.

View Documentation →

Comparison of Direct Access to ByteDance API

Ace Data Cloud allows you to focus on usage without worrying about registration, authentication, and regional restrictions

Comparison Item	Ace Data Cloud	ByteDance Direct Connection
Registration Threshold	Free registration, use immediately	Need to apply for a ByteDance account
Regional Restrictions	Available globally	✗ Restricted in some regions
API Style	Unified REST API	ByteDance Native SDK
Billing Method	Pay-as-you-go, recharge to use	Need to sign a contract to activate
Technical Support	7×24 Online Support	Ticket-based

Select the Suitable Seedream Model

From text-to-image to image editing—multiple models cover different creative needs

Recommended

Seedream 5.0 Pro

Latest Flagship

Seedream's latest flagship single-image model. Image quality and text understanding have reached the top, focusing on single-image generation (does not support multiple images / streaming / online), suitable for professional-level single-image creation.

✓ Top-notch single-image quality
✓ 1K / 2K resolution
✓ Text-to-image + multiple-image generation
✓ Optional output formats
✓ From $0.049 / image

Seedream 5.0 Lite

5.0 Multiple Images

Balanced version of the 5.0 series. Supports multiple-image generation, streaming output, and online search, balancing quality and cost, suitable for batch and continuous creation.

✓ High-quality images
✓ 1K / 2K / 4K / Adaptive
✓ Multiple images + streaming + online
✓ Optional output formats
✓ $0.035 / image

Seedream 4.5

Previous Generation Flagship

Previous generation flagship model. Excellent image quality, text understanding, and aesthetic expressiveness. Supports continuous image generation and streaming output.

✓ Outstanding image quality
✓ 1K / 2K / 4K / Adaptive
✓ Continuous image generation
✓ Streaming output
✓ $0.040 / image

Seedream 4.0

Stable Version

Mature and stable main model. Achieves the best balance between image quality and cost-effectiveness, suitable for most production scenarios.

✓ High-quality images
✓ 1K / 2K / 4K / Adaptive
✓ Continuous image generation
✓ Streaming output
✓ $0.032 / image

Seedream 3.0 T2I

Text to Image

Third generation text-to-image model. Supports precise control of seed values and guidance coefficients, suitable for batch generation scenarios that require reproducibility.

✓ Text to Image Generation
✓ Seed Controlled Reproducibility
✓ Guidance Coefficient Adjustment
✓ $0.038 / Image

SeedEdit 3.0 I2I

Image Editing

Dedicated image editing model. Upload the original image and use text descriptions to edit intentions, intelligently modifying local or overall styles of the image.

✓ Intelligent Image Editing
✓ Seed Controlled Reproducibility
✓ Guidance Coefficient Adjustment
✓ $0.046 / Image

doubao-seedream-5-0-pro-260628 doubao-seedream-5-0-260128 doubao-seedream-4-5-251128 doubao-seedream-4-0-250828 doubao-seedream-3-0-t2i-250415 doubao-seededit-3-0-i2i-250628

Seedream API Pricing

Billing is based on the number of image generations, and the price depends on the model. The task query interface is completely free.

Model	Type	Unit Price (per image)
Seedream 5.0 Pro	Text to Image / Single Image	$0.049 and up
Seedream 5.0 Lite	Text to Image / Group Image	$0.035
Seedream 4.5	Text to Image	$0.040
Seedream 4.0	Text to Image	$0.032
Seedream 3.0 T2I	Text to Image	$0.038
SeedEdit 3.0 I2I	Image Editing	$0.046

The task query interface /seedream/tasks is completely free

View Full Pricing →

Frequently Asked Questions

Everything you need to know about using the Seedream API

What is Seedream? ▾

Seedream is a series of AI image generation models launched by ByteDance, which includes text-to-image (T2I) and image-to-image (I2I) capabilities. This model is known for its excellent text understanding, visual aesthetics, and detail representation, supporting output resolutions up to 4K.

Does it support image editing? ▾

Yes! Using the doubao-seededit-3-0-i2i-250628 model, input the URL or Base64 encoding of the original image in the image parameter, and describe the editing intent through prompt to achieve intelligent image editing. It supports local modifications and overall style transformations.

How long does image generation take? ▾

In most cases, Seedream can complete image generation within 5-15 seconds. The specific time depends on the model version and output resolution. 4K resolution images will take longer than 1K resolution. You can also use callback notifications (callback_url) to avoid blocking waits.

What resolutions are supported? ▾

Seedream 5.0 Lite, 4.5, and 4.0 support 1K, 2K, 4K, and adaptive (adaptive) resolutions; Seedream 5.0 Pro supports 1K and 2K. You can also specify exact pixel dimensions (e.g., 1024x1024).

How to choose a model? ▾

For the best single image quality, Seedream 5.0 Pro is recommended (from $0.049 per image); for group images/streaming/networking, choose Seedream 5.0 Lite (at $0.035 per image). Seedream 4.0 is a cost-effective choice (at $0.032 per image). For image editing features, use SeedEdit 3.0. Seedream 3.0 T2I is suitable for batch generation scenarios that require seed value reproduction.

What is sequential image generation? ▾

Set sequential_image_generation: "auto", the Seedream 5.0 Lite, 4.5, and 4.0 models will generate a series of stylistically consistent and content-related images based on your input (Seedream 5.0 Pro does not support groups of images). Suitable for scenes that require visual consistency, such as comic storyboards, storyboards, and product series displays.

Can the watermark be turned off? ▾

Yes. Set watermark: false in the request to turn off the AI-generated watermark. By default, the watermark is enabled. Please use AI-generated content identifiers reasonably according to local regulations.