grok-4 (文本转文本 (聊天))

{
  "choices": [
    {
      "finish_reason": "stop",
      "index": 0,
      "message": {
        "content": "I'm Grok, a helpful and maximally truthful AI built by xAI. I'm designed to answer questions, provide information, and tackle problems with a bit of wit and wisdom—think of me as inspired by the Hitchhiker's Guide to the Galaxy and JARVIS from Iron Man. Not omniscient, but I'll do my best. What's on your mind?",
        "role": "assistant"
      }
    }
  ],
  "created": 1770018847,
  "id": "abc",
  "model": "grok-4",
  "object": "chat.completion",
  "system_fingerprint": "fp_dd0aa291c6",
  "usage": {
    "completion_tokens": 196,
    "completion_tokens_details": {
      "accepted_prediction_tokens": 0,
      "audio_tokens": 0,
      "reasoning_tokens": 124,
      "rejected_prediction_tokens": 0
    },
    "prompt_tokens": 688,
    "prompt_tokens_details": {
      "audio_tokens": 0,
      "cached_tokens": 679
    },
    "total_tokens": 884
  }
}