{
  "site": "Agentic Weekly",
  "dataset": "Agentic Weekly model facts",
  "as_of": "2026-10-26",
  "license": {
    "name": "CC BY 4.0",
    "url": "https://creativecommons.org/licenses/by/4.0/"
  },
  "attribution": "Data: Agentic Weekly (https://theagenticweekly.com), CC BY 4.0",
  "page": "https://theagenticweekly.com/models",
  "evidence_labels": {
    "Reported": "Read from the cited vendor page on the as-of date; not run by us.",
    "Tested": "We ran it ourselves; scope is stated in tested_note. No model is Tested yet."
  },
  "model": {
    "slug": "gpt-5-5",
    "name": "GPT-5.5",
    "vendor": "OpenAI",
    "family": "GPT",
    "category": "llm",
    "status": "generally-available",
    "groups": [
      "frontier",
      "coding",
      "agents"
    ],
    "short_answer": "GPT-5.5 is an OpenAI language model released Apr 24, 2026; OpenAI's newest language model in our dataset is GPT-6.1 Terra. Proprietary, API access only. OpenAI's GPT-5.5 flagship, released Apr 24, 2026 with a 1.05M-token context window. Verified against vendor sources on Oct 26, 2026.",
    "summary": "OpenAI's GPT-5.5 flagship, released Apr 24, 2026 with a 1.05M-token context window.",
    "release_date": "2026-04-24",
    "latest_update": null,
    "api_id": "gpt-5.5",
    "context_tokens": 1050000,
    "max_output_tokens": 128000,
    "input_modalities": [
      "text",
      "image"
    ],
    "output_modalities": [
      "text"
    ],
    "parameters": null,
    "license": "Proprietary (API)",
    "open_weights": false,
    "pricing": {
      "currency": "USD",
      "unit": "per 1M tokens",
      "input": 5,
      "output": 30,
      "cachedInput": 0.5,
      "text": "$5 in / $30 out per 1M tokens"
    },
    "evidence": "Reported",
    "tested_note": null,
    "last_verified": "2026-10-26",
    "is_stale": false,
    "facts": {
      "release_date": {
        "value": "2026-04-24",
        "source_url": "https://developers.openai.com/api/docs/changelog",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "api_id": {
        "value": "gpt-5.5",
        "source_url": "https://developers.openai.com/api/docs/models/gpt-5.5",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "context_tokens": {
        "value": 1050000,
        "source_url": "https://developers.openai.com/api/docs/models/gpt-5.5",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "max_output_tokens": {
        "value": 128000,
        "source_url": "https://developers.openai.com/api/docs/models/gpt-5.5",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "input_modalities": {
        "value": [
          "text",
          "image"
        ],
        "source_url": "https://developers.openai.com/api/docs/models/gpt-5.5",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "output_modalities": {
        "value": [
          "text"
        ],
        "source_url": "https://developers.openai.com/api/docs/models/gpt-5.5",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "license": {
        "value": {
          "type": "proprietary",
          "name": "Proprietary (API)",
          "openWeights": false
        },
        "source_url": "https://developers.openai.com/api/docs/models/gpt-5.5",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      },
      "pricing": {
        "value": {
          "currency": "USD",
          "unit": "per 1M tokens",
          "input": 5,
          "output": 30,
          "cachedInput": 0.5
        },
        "source_url": "https://developers.openai.com/api/docs/models/gpt-5.5",
        "as_of": "2026-10-26",
        "evidence": "Reported"
      }
    },
    "vendor_claims": [],
    "notes": [],
    "not_verified": [],
    "sources": [
      {
        "label": "OpenAI API changelog",
        "url": "https://developers.openai.com/api/docs/changelog"
      },
      {
        "label": "OpenAI model page: GPT-5.5",
        "url": "https://developers.openai.com/api/docs/models/gpt-5.5"
      }
    ],
    "url": "https://theagenticweekly.com/models/gpt-5-5",
    "markdown": "https://theagenticweekly.com/models/gpt-5-5.md",
    "api": "https://theagenticweekly.com/api/models/gpt-5-5"
  }
}