Chat Completion

POST

/v1/chat/completions

Create a chat completion. Supports both streaming (SSE) and non-streaming modes.

Non-streaming: set stream: false (default), returns the full response

Streaming: set stream: true, returns ChatCompletionChunk via SSE

Request

Authorization

Bearer Token

Provide your bearer token in the

Authorization

header when making requests to protected resources.

Example:

Authorization: Bearer ********************

Header Params

Body Params application/jsonRequired

Example

{
    "model": "deepseek-v3",
    "messages": [
        {
            "role": "system",
            "content": "You are a helpful assistant"
        },
        {
            "role": "user",
            "content": "Hello"
        }
    ],
    "stream": false,
    "temperature": 0.7
}

Request Code Samples

Shell

JavaScript

Java

Swift

PHP

Python

HTTP

Objective-C

Ruby

OCaml

Dart

curl --location '/v1/chat/completions' \
--header 'X-Request-Id;' \
--header 'X-Tenant-Id;' \
--header 'X-Channel;' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
    "model": "deepseek-v3",
    "messages": [
        {
            "role": "system",
            "content": "You are a helpful assistant"
        },
        {
            "role": "user",
            "content": "Hello"
        }
    ],
    "stream": false,
    "temperature": 0.7
}'

Responses

🟢200

application/json

Successfully returns the completion result

Bodyapplication/json

Example

{
    "id": "chatcmpl-abc123",
    "object": "chat.completion",
    "created": 1713833628,
    "model": "deepseek-v3",
    "choices": [
        {
            "index": 0,
            "message": {
                "role": "assistant",
                "content": "Hello! How can I help you?"
            },
            "finish_reason": "stop"
        }
    ],
    "usage": {
        "prompt_tokens": 15,
        "completion_tokens": 8,
        "total_tokens": 23
    }
}

🟠401

Modified at 2026-06-29 09:22:57

Request URL

List Available Models