-- request --
{
  "input": "This was a large input...",
  "model": "gpt-4.1",
  "prompt_cache_key": "key-123",
  "prompt_cache_retention": "24h",
  "stream": false
}

-- non-streaming --
{
  "id": "resp_0cd5d6b8310055d600696a1776b42c81a199fbb02248a8bfa0",
  "object": "response",
  "created_at": 1768560502,
  "status": "completed",
  "background": false,
  "billing": {
    "payer": "developer"
  },
  "completed_at": 1768560504,
  "error": null,
  "frequency_penalty": 0.0,
  "incomplete_details": null,
  "instructions": null,
  "max_output_tokens": null,
  "max_tool_calls": null,
  "model": "gpt-4.1-2025-04-14",
  "output": [
    {
      "id": "msg_0cd5d6b8310055d600696a177708b881a1bb53034def764104",
      "type": "message",
      "status": "completed",
      "content": [
        {
          "type": "output_text",
          "annotations": [],
          "logprobs": [],
          "text": "- I provide clear, accurate, and concise answers tailored to your requests.\n- I can process and summarize large volumes of information quickly.\n- I adapt my responses based on your needs and instructions for precision and relevance."
        }
      ],
      "role": "assistant"
    }
  ],
  "parallel_tool_calls": true,
  "presence_penalty": 0.0,
  "previous_response_id": null,
  "prompt_cache_key": "key-123",
  "prompt_cache_retention": "24h",
  "reasoning": {
    "effort": null,
    "summary": null
  },
  "safety_identifier": null,
  "service_tier": "default",
  "store": true,
  "temperature": 1.0,
  "text": {
    "format": {
      "type": "text"
    },
    "verbosity": "medium"
  },
  "tool_choice": "auto",
  "tools": [],
  "top_logprobs": 0,
  "top_p": 1.0,
  "truncation": "disabled",
  "usage": {
    "input_tokens": 12033,
    "input_tokens_details": {
      "cached_tokens": 11904
    },
    "output_tokens": 44,
    "output_tokens_details": {
      "reasoning_tokens": 0
    },
    "total_tokens": 12077
  },
  "user": null,
  "metadata": {}
}