All models

gpt-5-mini

OpenAIChatVision
Get your API key
gpt-5-mini

A lightweight conversational model for image-text understanding and long-form material processing

gpt-5-mini is the mini model in the OpenAI GPT-5 series. It can handle tasks involving text and image understanding, and delivers results in text. It is suitable for transforming clear business rules, long-form materials, or interface screenshots into summaries, Q&A, and structured drafts. Applications can integrate it using the public request format in the API section of this page.

OpenAIModel brand
ChatModel type
Visual understandingTask capability
STANDARD APIs · QUICK SETUP

Keep your SDK. Connect in minutes.

Point the Base URL to api.acedata.cloud, configure your platform API key and the model ID below, and use your compatible SDK or client.

API hostapi.acedata.cloud
modelgpt-5-mini
OpenAI Python SDK
import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["ACEDATACLOUD_API_KEY"],
    base_url="https://api.acedata.cloud/v1",
)
response = client.responses.create(
    model="gpt-5-mini",
    input="Hello!",
)
print(response.output_text)

Choose an available protocol for this model. OpenAI SDK uses a Base URL ending in /v1; Anthropic SDK uses the root URL. See each guide for protocol-specific parameters, tools and response formats.

Specifications and API features

Clarify capacity, input and output, and invocation methods before selecting a model.

Native context
Official native specification: 400,000 tokens
Native maximum output
Official native specification: 128,000 tokens
Input and delivery
Text and image understanding; text responses
Response methods
Responses and Chat Completions provide streaming responses
Format control
Chat Completions provides text, json_object, and json_schema format options
Reasoning control entry points
Responses: reasoning; Chat Completions: reasoning_effort
Native maximum input
272,000 tokens; must be planned together with output

Capacity is based on OpenAI's published native specifications; use format, reasoning, and conversation controls according to the selected entry point, and this does not mean that all general parameters apply to this model.

Core Capabilities

Learn what gpt-5-mini can bring to your work.

Include Images in Text Tasks

gpt-5-mini can process images together with text questions, making it suitable for explaining interface content, organizing information in images, or asking follow-up questions about screenshots. Its visual value lies in converting visible content into text analysis rather than generating images. When submitting, specify the area of focus, evaluation criteria, and expected answer format to reduce ambiguity caused by open-ended descriptions.

Organize Answers Around Long Materials

Native long context allows lengthy text and multi-turn history to participate in a task together. When processing manuals, requirements materials, or interview records, first provide section identifiers, then request summaries by topic, paragraph comparisons, or action-item extraction. Long input does not mean every detail will be retained accurately, so key conclusions should ideally include the corresponding location in the original text.

Make Results Easy for Applications to Consume

You can define the goal as explicit fields, such as issue category, summary, and recommended next steps, so the model generates drafts that are easy for programs to process, with results then validated by the program. When format constraints or function tool definitions are needed, you can choose the Chat Completions endpoint that provides the relevant fields and use it when the model supports the corresponding configuration. Tool calls express function requests; actual execution, permission checks, and result feedback remain the application's responsibility, and generated parameters must not be treated as proof that an operation has been completed.

Use Cases

Start with specific tasks to find where the model can be effective.

Document Q&A and Knowledge Organization

Use extracted product descriptions, operating procedures, or internal policies as text input, along with user questions and answer boundaries, and request conclusions, supporting paragraphs, and information that still needs to be added. This is suitable for drafting knowledge-base answers, training outlines, and process comparison tables; important clauses should retain their original wording so reviewers can return to the source material and verify them item by item.

Screenshot-Assisted Support

Provide screenshots of error interfaces, descriptions of user actions, and known troubleshooting steps, and have the model organize visible messages, potentially relevant settings, and questions that require further inquiry. Deliverables can be support ticket summaries or troubleshooting checklists. Logs, account status, and system configuration beyond the screenshot must be provided separately and cannot be inferred from the image as known facts.

Rule-Based Information Processing

Submit customer messages, requirement descriptions, or document paragraphs together with classification rules, and request processing drafts with fixed fields, such as topic, urgency, and missing information. This is suitable for assisted classification and summarization stages in workflows. Before batch use, prepare representative samples to check field completeness, boundary categories, and handling of empty values, then integrate it into subsequent programs.

How to choose this model

Choose based on task complexity, input materials, and expected results.

How to choose between GPT-5 and nano

GPT-5, GPT-5 mini, and GPT-5 nano have the same public context and maximum output capacity, so do not choose a model based solely on how much text it can hold. When task rules are clear and delivery formats are stable, you can first use mini to validate samples; when complex judgment is involved, give the same set of difficult problems to GPT-5 for comparison; tasks with simple steps can also be included in nano comparisons, with the decision based on evaluation results.

Choose an entry point by interaction format

Use Chat Completions or Responses and provide the full model ID. Chat Completions uses messages and choices, while Responses uses input and the corresponding response structure; handle history management, streaming events, and tool parameters separately for the selected interface, and do not mix the two formats.

Start with a specific task

Based on the characteristics of gpt-5-mini, first validate small tasks whose results can be checked.

01

Process business materials with precise prompts

You can ask directly: Organize this specification into user questions and answers, with each answer using only information from the original text; list the limitations, required conditions, and questions not explained in the material.

02

Prepare inputs that support evaluation

Provide precise fields and output examples; use representative samples to compare quality differences between lightweight models and the primary model.

03

Then integrate it into your workflow

Use the full model ID gpt-5-mini, first confirm the public request format and available parameters on the API page, then connect your application. Preserve result parsing, error handling, and relevant evidence, and use the same set of real samples to assess whether it is suitable for ongoing use.

Usage boundaries

Before formal use, understand output quality and capability limits.

  • gpt-5-mini's image capability is for understanding images and should not be treated as an image-generation or speech service. Small text in charts, blurry screenshots, and dense layouts require special checking; you can first crop key areas, then add important numbers or text to the question, avoiding reliance on visual reading alone.
  • 400K context and 128K maximum output are native capacity metrics; they do not mean every call can produce a visible answer of the same length. Set an appropriate output budget and check the completion status; long reports are better generated by section and consolidated after verification, rather than requesting all details at once.
  • Reasoning controls do not replace business validation, nor do they automatically grant the ability to access the internet, execute code, or operate interfaces. When current information is involved, provide real-time materials or connect appropriate tools; before handing function requests to a program for execution, also check the parameters, authorization scope, and potential real-world impact.

Frequently Asked Questions

Answers to common questions about using gpt-5-mini.

Can gpt-5-mini view images and generate images too?

It supports image understanding and can generate text responses about screenshots, photos, or charts, but do not treat it as an image generation model. When using Chat Completions, you can combine text and image_url in the message content, and clearly specify what needs to be identified, explained, or compared.

Does gpt-5-mini have a smaller context window than GPT-5?

According to publicly available native specifications, both have a 400K context window and 128K maximum output, and GPT-5 nano is also listed with the same capacity. The same capacity does not mean the same task performance; model selection should compare correctness, completeness, and calling cost on real tasks rather than looking only at the mini name.

Must I manage conversation history when integrating gpt-5-mini?

When using Chat Completions, include relevant history in messages; when using Responses, organize input and related conversation content according to the documentation. Provide the latest materials, revision goals, and key constraints in each turn; for longer tasks, retain phased summaries and final versions that can be checked independently.

How does gpt-5-mini return structured results?

When structured results are needed, first clearly define field meanings, allowed values, and how missing information should be handled, then ask the model to generate a JSON draft. The Chat Completions endpoint provides JSON object and JSON Schema format options; when the model accepts the corresponding configuration, these options can be used to constrain output. After receiving the result, parsing and business validation are still required, especially checking required fields and factual content; do not write directly to the database merely because the format is correct.

Will calling gpt-5-mini automatically search the web?

Simply selecting this model does not automatically provide real-time web information. Ordinary text and image Q&A should be based on the submitted materials; when the latest data is needed, the application can retrieve and provide content, or configure an appropriate tool workflow. A model proposing a tool call also does not mean the external operation has already been executed successfully.