Create chat completion (non-stream)

Developing

POST

/v1/chat/completions

Given a prompt, the model will return one or more predicted completions and can also provide the probabilities of alternative tokens at each position.
Create completions for the provided prompt and parameters.
Official documentation: https://platform.openai.com/docs/api-reference/chat/create

Request

Header Params

Body Params application/json

Example

{
    "model": "gpt-4o",
    "messages": [
        {
            "role": "user",
            "content": "nihao。"
        }
    ],
    "max_tokens": 1000
}

Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location '/v1/chat/completions' \
--header 'Accept: application/json' \
--header 'Authorization: {{Authorization}}' \
--header 'Content-Type: application/json' \
--data '{
    "model": "gpt-4o",
    "messages": [
        {
            "role": "user",
            "content": "nihao。"
        }
    ],
    "max_tokens": 1000
}'

Responses

🟢200成功

application/json

Bodyapplication/json

Example

{
    "id": "chatcmpl-123",
    "object": "chat.completion",
    "created": 1677652288,
    "choices": [
        {
            "index": 0,
            "message": {
                "role": "assistant",
                "content": "\n\nHello there, how may I assist you today?"
            },
            "finish_reason": "stop"
        }
    ],
    "usage": {
        "prompt_tokens": 9,
        "completion_tokens": 12,
        "total_tokens": 21
    }
}

Modified at 2026-10-19 10:10:04

deepseek-ocr recognition

ChatGPT automatic completion