curl --request POST \
  --url https://www.anyfast.ai/v1/chat/completions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "deepseek-v4-flash",
  "messages": [
    {
      "role": "user",
      "content": "Hello!"
    }
  ],
  "thinking": {},
  "max_tokens": 2,
  "response_format": {
    "type": "text"
  },
  "stop": "<string>",
  "stream": false,
  "stream_options": {
    "include_usage": true
  },
  "temperature": 1,
  "top_p": 1,
  "tools": [
    {
      "type": "function"
    }
  ],
  "frequency_penalty": 0,
  "presence_penalty": 0,
  "user_id": "<string>"
}
'

{
  "id": "chatcmpl-abc123",
  "object": "chat.completion",
  "created": 123,
  "model": "deepseek-v4-flash",
  "choices": [
    {
      "index": 123,
      "message": {
        "role": "assistant",
        "content": "Hello! How can I help you today?",
        "reasoning_content": "<string>",
        "tool_calls": [
          {
            "id": "<string>",
            "type": "function",
            "function": {
              "name": "<string>",
              "arguments": "<string>"
            }
          }
        ]
      },
      "matched_stop": "<string>"
    }
  ],
  "usage": {
    "prompt_tokens": 123,
    "completion_tokens": 123,
    "total_tokens": 123,
    "prompt_tokens_details": {
      "cached_tokens": 123,
      "audio_tokens": 123,
      "text_tokens": 123
    },
    "completion_tokens_details": {
      "reasoning_tokens": 123,
      "accepted_prediction_tokens": 123,
      "rejected_prediction_tokens": 123
    }
  },
  "system_fingerprint": "<string>"
}