对话补全 (Chat Completions)

POST

/v1/chat/completions

请求参数

Authorization

Body 参数application/json必填

示例

{
    "model": "gpt-4o",
    "messages": [
        {
            "role": "system",
            "content": "你是一个简洁的助手。"
        },
        {
            "role": "user",
            "content": "用一句话解释什么是 API。"
        }
    ],
    "temperature": 0.7,
    "max_tokens": 256,
    "stream": false
}

请求示例代码

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location 'https://2-api.com/v1/chat/completions' \
--header 'Content-Type: application/json' \
--data '{
    "model": "gpt-4o",
    "messages": [
        {
            "role": "system",
            "content": "你是一个简洁的助手。"
        },
        {
            "role": "user",
            "content": "用一句话解释什么是 API。"
        }
    ],
    "temperature": 0.7,
    "max_tokens": 256,
    "stream": false
}'

返回响应

🟢200

application/json

成功（非流式返回 JSON；当 stream=true 时返回 SSE 文本流，以 data: [DONE] 结束）

Bodyapplication/json

示例

{
    "id": "chatcmpl-xxx",
    "object": "chat.completion",
    "created": 1717400000,
    "model": "gpt-4o",
    "choices": [
        {
            "index": 0,
            "message": {
                "role": "system",
                "content": "string"
            },
            "finish_reason": "stop"
        }
    ],
    "usage": {
        "prompt_tokens": 28,
        "completion_tokens": 18,
        "total_tokens": 46
    }
}

🟠401Unauthorized

🟠429RateLimited

修改于 2026-06-04 03:32:51

VS Code 接入（Cline / Roo Code 等）

Responses API