GPT-5.2

{
  "id": "openai/gpt-5.2",
  "name": "GPT-5.2",
  "description": "Reliable GPT generation for broad coding, writing, and tool-assisted product work",
  "family": "gpt",
  "last_updated": "2025-12-11",
  "knowledge": "2025-08-31",
  "attachment": true,
  "reasoning": true,
  "tool_call": true,
  "structured_output": true,
  "temperature": true,
  "modalities": {
    "input": [
      "text",
      "image"
    ],
    "output": [
      "text"
    ]
  },
  "limit": {
    "context": 400000,
    "input": 272000,
    "output": 128000
  },
  "benchmarks": [
    {
      "name": "SWE-Bench Pro",
      "score": 29.94,
      "source": "https://labs.scale.com/leaderboard/swe_bench_pro_public",
      "metric": "resolve rate",
      "dataset": "public"
    }
  ],
  "release_date": "2025-12-11",
  "open_weights": false
}