curl --request POST \
  --url https://www.anyfast.ai/v1/chat/completions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "gpt-5.1-chat-latest",
  "messages": [
    {
      "role": "user",
      "content": "你好！"
    }
  ],
  "max_tokens": 2,
  "temperature": 1,
  "top_p": 0.5,
  "frequency_penalty": 0,
  "presence_penalty": 0,
  "stream": false,
  "stop": "<string>",
  "n": 1,
  "response_format": {
    "type": "text"
  },
  "tools": [
    {}
  ],
  "tool_choice": "<string>",
  "user": "<string>"
}
'

{
  "id": "chatcmpl-abc123",
  "object": "chat.completion",
  "created": 123,
  "model": "gpt-5.1-chat-latest",
  "choices": [
    {
      "index": 123,
      "message": {
        "role": "assistant",
        "content": "你好！有什么可以帮您的？"
      },
      "finish_reason": "stop"
    }
  ],
  "usage": {
    "prompt_tokens": 123,
    "completion_tokens": 123,
    "total_tokens": 123
  }
}