Create chat completion (streaming) [native format]

POST

https://api.key4u.vn/v1/messages

MiniMax text chat endpoint (Apifox export path is /v1/messages, not /minimax/v1/ prefix).

https://platform.minimaxi.com/docs/api-reference/text-post

Request

Authorization

Provide your bearer token in the

Authorization

header when making requests to protected resources.

Example:

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

Body Params application/jsonRequired

Examples

Responses

🟢200

application/json

Bodyapplication/json

🟠400Bad request or validation failed

🟠401Missing or invalid API Key

Request Example

Shell

JavaScript

Java

Swift

curl --location 'https://api.key4u.vn/v1/messages' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
  "max_completion_tokens": 2048,
  "messages": [
    {
      "content": "You are a professional and friendly AI assistant.",
      "name": "AI Assistant",
      "role": "system",
      "x-i18n": {
        "en-US": {
          "name": "AI assistant"
        }
      }
    },
    {
      "content": "Write me a poem about autumn.",
      "name": "Zhang San",
      "role": "user",
      "x-i18n": {
        "en-US": {
          "name": "John Doe"
        }
      }
    }
  ],
  "model": "MiniMax-M2.1",
  "stream": true,
  "stream_options": {
    "include_usage": true
  },
  "temperature": 0.9,
  "top_p": 0.95
}'

Response Example

200 - example

{
  "base_resp": {
    "status_code": 0,
    "status_msg": ""
  },
  "choices": [
    {
      "finish_reason": "stop",
      "index": 0,
      "message": {
        "audio_content": "",
        "content": "Hello! How can I help you?",
        "name": "MiniMax AI",
        "reasoning_content": "...omitted",
        "role": "assistant"
      }
    }
  ],
  "created": 1755153113,
  "id": "04ecb5d9b1921ae0fb0e8da9017a5474",
  "input_sensitive": false,
  "input_sensitive_type": 0,
  "model": "MiniMax-M1",
  "object": "chat.completion",
  "output_sensitive": false,
  "output_sensitive_int": 0,
  "output_sensitive_type": 0,
  "usage": {
    "completion_tokens": 223,
    "completion_tokens_details": {
      "reasoning_tokens": 214
    },
    "prompt_tokens": 26,
    "total_characters": 0,
    "total_tokens": 249
  }
}

Modified at 2026-10-13 12:32:40

GPT-4o-audio

Create thinking chat