{
  "at": "2026-10-23T17:58:33.374258+00:00",
  "http": 200,
  "model": "gpt-4.1-mini",
  "requestSeconds": 6.696,
  "endpoint": "/v1/chat/completions",
  "requestId": "818715b6-0144-457f-b61c-80897c6d29b5",
  "usage": {
    "prompt_tokens": 2720,
    "completion_tokens": 313,
    "total_tokens": 3033,
    "prompt_tokens_details": {
      "cached_tokens": 0,
      "audio_tokens": 0,
      "image_tokens": 1551
    },
    "completion_tokens_details": {
      "reasoning_tokens": 0,
      "audio_tokens": 0,
      "accepted_prediction_tokens": 0,
      "rejected_prediction_tokens": 0
    },
    "latency_checkpoint": {
      "engine_tbt_ms": 10,
      "engine_ttft_ms": 154,
      "engine_ttlt_ms": 3138,
      "pre_inference_ms": 149,
      "service_tbt_ms": 10,
      "service_ttft_ms": 331,
      "service_ttlt_ms": 3312,
      "user_visible_ttft_ms": 182
    }
  },
  "content": "{\n  \"labels\": [\n    {\n      \"label\": \"POWER\",\n      \"chinese\": \"电源\",\n      \"position\": \"左侧第一个按钮\",\n      \"source_quote\": \"POWER\"\n    },\n    {\n      \"label\": \"FEED\",\n      \"chinese\": \"进纸\",\n      \"position\": \"中间按钮\",\n      \"source_quote\": \"FEED\"\n    },\n    {\n      \"label\": \"STATUS\",\n      \"chinese\": \"状态指示灯\",\n      \"position\": \"右侧小圆灯\",\n      \"source_quote\": \"STATUS\"\n    },\n    {\n      \"label\": \"TEST 01\",\n      \"chinese\": \"测试标签\",\n      \"position\": \"出纸口正中\",\n      \"source_quote\": \"The test label reads TEST 01.\"\n    }\n  ],\n  \"steps\": [\n    \"1. 关闭打印机电源并打开顶盖。\",\n    \"2. 放置纸卷，使标签从前方出纸口方向出来。关闭顶盖。\",\n    \"3. 打开电源。等待状态指示灯变为绿色。\",\n    \"4. 状态指示灯为绿色时，按一次进纸按钮。\",\n    \"5. 观察打印出的测试标签，内容为 TEST 01。\"\n  ],\n  \"unknown_features\": [\n    \"未提供切纸功能说明。\",\n    \"未提供蓝牙、Wi-Fi、手机应用、固件升级等功能说明。\"\n  ]\n}"
}