GPT-5.6 Luna Pro

{
  "id": "openai/gpt-5.6-luna",
  "name": "GPT-5.6 Luna",
  "description": "Cost-efficient GPT-5.6 model for fast, high-volume workloads",
  "family": "gpt-luna",
  "last_updated": "2026-07-09",
  "knowledge": "2026-02-16",
  "attachment": true,
  "reasoning": true,
  "tool_call": true,
  "structured_output": true,
  "temperature": false,
  "modalities": {
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      "image",
      "pdf"
    ],
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    ]
  },
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      "date": "2026-07-09"
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    },
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    },
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      "dataset": "Tier 1-3",
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    },
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      "name": "MMMU Pro",
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      "date": "2026-07-09"
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      "date": "2026-07-09"
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    {
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      "date": "2026-07-09"
    },
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      "name": "Artificial Analysis Coding Agent Index",
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  "release_date": "2026-07-09",
  "open_weights": false
}