{
  "schemaVersion": 1,
  "generatedAtUtc": "2026-09-25T08:31:37.494883+00:00",
  "asOfUtc": "2026-09-25T00:00:00Z",
  "currency": "USD",
  "unit": "per-million-tokens",
  "source": "src/TokenEconomy/catalog/model-prices.json",
  "scope": "Direct-provider standard text-token rates; Anthropic 5-minute cache writes; context and service tiers require explicit custom rates.",
  "coverage": {
    "catalogModels": 25,
    "pricedModels": 25,
    "pricePeriods": 28
  },
  "models": [
    {
      "modelId": "claude-opus-5-5",
      "displayName": "Claude Opus 5.5",
      "vendor": "anthropic",
      "releaseDate": "2026-09-22",
      "releaseDateSource": "https://platform.claude.com/docs/en/models/opus-5-5/overview",
      "note": null,
      "selectionStatus": "selectable",
      "deprecated": false,
      "history": [
        {
          "validFrom": "2026-09-22T00:00:00Z",
          "inputPerMTok": 4,
          "cacheReadPerMTok": 0.2,
          "cacheWritePerMTok": 5,
          "outputPerMTok": 20,
          "currency": "USD",
          "source": "Anthropic official pricing, model, and release evidence; retrieved 2026-09-24. https://platform.claude.com/docs/en/about-claude/pricing; https://platform.claude.com/docs/en/models/opus-5-5/overview; https://platform.claude.com/docs/en/release-notes/overview#september-22-2026",
          "sourceUrls": [
            "https://platform.claude.com/docs/en/about-claude/pricing",
            "https://platform.claude.com/docs/en/models/opus-5-5/overview",
            "https://platform.claude.com/docs/en/release-notes/overview#september-22-2026"
          ],
          "verifiedOn": "2026-09-24",
          "validFromBasis": "provider-announced-date",
          "note": "Standard global Claude API rates; cache writes use the 5-minute $5/MTok tariff and cache reads use the Opus 5.5-specific 0.05x multiplier. The same source lists the 1-hour cache write at $8/MTok, Batch at $2/$10, and Claude-API-only fast mode at $8/$40; those alternate processing modes are not represented by this standard-rate entry. Dates use midnight UTC as a calendar-day convention, not a published intraday billing cutover.",
          "unconfirmed": false
        }
      ]
    },
    {
      "modelId": "claude-fable-5-1",
      "displayName": "Claude Fable 5.1",
      "vendor": "anthropic",
      "releaseDate": "2026-09-01",
      "releaseDateSource": "https://platform.claude.com/docs/en/models/fable-5-1/overview",
      "note": null,
      "selectionStatus": "selectable",
      "deprecated": false,
      "history": [
        {
          "inputPerMTok": 10,
          "outputPerMTok": 50,
          "cacheReadPerMTok": 0.25,
          "cacheWritePerMTok": 12.5,
          "currency": "USD",
          "validFrom": "2026-09-01T00:00:00Z",
          "source": "Anthropic official pricing and release evidence; retrieved 2026-09-12. https://www.anthropic.com/claude-fable-and-mythos-5-1; https://platform.claude.com/docs/en/about-claude/pricing; https://platform.claude.com/docs/en/models/fable-5-1/overview; https://platform.claude.com/docs/en/release-notes/overview",
          "sourceUrls": [
            "https://www.anthropic.com/claude-fable-and-mythos-5-1",
            "https://platform.claude.com/docs/en/about-claude/pricing",
            "https://platform.claude.com/docs/en/models/fable-5-1/overview",
            "https://platform.claude.com/docs/en/release-notes/overview"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Standard global Claude API rates; cache writes use the 5-minute duration. Base input/output rates are supported at public launch; exact launch-day cache tariffs are not independently dated for every category. Current cache rates verified on 2026-09-12. Dates use midnight UTC as a calendar-day convention, not a published intraday cutover. Fable 5.1 launch confirms $0.25 cache reads, distinct from Fable 5 at $1.",
          "unconfirmed": false
        }
      ]
    },
    {
      "modelId": "claude-fable-5",
      "displayName": "Claude Fable 5",
      "vendor": "anthropic",
      "releaseDate": "2026-06-09",
      "releaseDateSource": "https://platform.claude.com/docs/en/models/fable-5/overview",
      "note": null,
      "selectionStatus": "unsupported",
      "deprecated": false,
      "history": [
        {
          "inputPerMTok": 10,
          "outputPerMTok": 50,
          "cacheReadPerMTok": 1,
          "cacheWritePerMTok": 12.5,
          "currency": "USD",
          "validFrom": "2026-06-09T00:00:00Z",
          "source": "Anthropic official pricing and release evidence; retrieved 2026-09-12. https://www.anthropic.com/news/claude-fable-5-mythos-5; https://platform.claude.com/docs/en/about-claude/pricing; https://platform.claude.com/docs/en/models/fable-5/overview",
          "sourceUrls": [
            "https://www.anthropic.com/news/claude-fable-5-mythos-5",
            "https://platform.claude.com/docs/en/about-claude/pricing",
            "https://platform.claude.com/docs/en/models/fable-5/overview"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Standard global Claude API rates; cache writes use the 5-minute duration. Base input/output rates are supported at public launch; exact launch-day cache tariffs are not independently dated for every category. Current cache rates verified on 2026-09-12. Dates use midnight UTC as a calendar-day convention, not a published intraday cutover.",
          "unconfirmed": false
        }
      ]
    },
    {
      "modelId": "claude-opus-5",
      "displayName": "Claude Opus 5",
      "vendor": "anthropic",
      "releaseDate": "2026-07-24",
      "releaseDateSource": "https://platform.claude.com/docs/en/models/opus-5/overview",
      "note": null,
      "selectionStatus": "selectable",
      "deprecated": false,
      "history": [
        {
          "inputPerMTok": 5,
          "outputPerMTok": 25,
          "cacheReadPerMTok": 0.5,
          "cacheWritePerMTok": 6.25,
          "currency": "USD",
          "validFrom": "2026-07-24T00:00:00Z",
          "source": "Anthropic official pricing and release evidence; retrieved 2026-09-12. https://www.anthropic.com/news/claude-opus-5; https://platform.claude.com/docs/en/about-claude/pricing; https://platform.claude.com/docs/en/models/opus-5/overview",
          "sourceUrls": [
            "https://www.anthropic.com/news/claude-opus-5",
            "https://platform.claude.com/docs/en/about-claude/pricing",
            "https://platform.claude.com/docs/en/models/opus-5/overview"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Standard global Claude API rates; cache writes use the 5-minute duration. Base input/output rates are supported at public launch; exact launch-day cache tariffs are not independently dated for every category. Current cache rates verified on 2026-09-12. Dates use midnight UTC as a calendar-day convention, not a published intraday cutover.",
          "unconfirmed": false
        }
      ]
    },
    {
      "modelId": "claude-sonnet-5",
      "displayName": "Claude Sonnet 5",
      "vendor": "anthropic",
      "releaseDate": "2026-06-30",
      "releaseDateSource": "https://platform.claude.com/docs/en/models/sonnet-5/overview",
      "note": "Sonnet 5 retains its launch price: the scheduled September increase was cancelled on 2026-08-10.",
      "selectionStatus": "fallbackOnly",
      "deprecated": false,
      "history": [
        {
          "inputPerMTok": 2,
          "outputPerMTok": 10,
          "cacheReadPerMTok": 0.2,
          "cacheWritePerMTok": 2.5,
          "currency": "USD",
          "validFrom": "2026-06-30T00:00:00Z",
          "source": "Anthropic official pricing and release evidence; retrieved 2026-09-12. https://www.anthropic.com/news/claude-sonnet-5; https://platform.claude.com/docs/en/about-claude/pricing; https://platform.claude.com/docs/en/models/sonnet-5/overview; https://platform.claude.com/docs/en/release-notes/overview",
          "sourceUrls": [
            "https://www.anthropic.com/news/claude-sonnet-5",
            "https://platform.claude.com/docs/en/about-claude/pricing",
            "https://platform.claude.com/docs/en/models/sonnet-5/overview",
            "https://platform.claude.com/docs/en/release-notes/overview"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Standard global Claude API rates; cache writes use the 5-minute duration. Base input/output rates are supported at public launch; exact launch-day cache tariffs are not independently dated for every category. Current cache rates verified on 2026-09-12. Dates use midnight UTC as a calendar-day convention, not a published intraday cutover. The planned 2026-09-01 increase to $3/$15 was cancelled on 2026-08-10 and never took effect; $2/$10 continues from launch.",
          "unconfirmed": false
        }
      ]
    },
    {
      "modelId": "claude-opus-4-8",
      "displayName": "Claude Opus 4.8",
      "vendor": "anthropic",
      "releaseDate": "2026-05-28",
      "releaseDateSource": "https://platform.claude.com/docs/en/release-notes/overview#may-28-2026",
      "note": null,
      "selectionStatus": "unsupported",
      "deprecated": false,
      "history": [
        {
          "inputPerMTok": 5,
          "outputPerMTok": 25,
          "cacheReadPerMTok": 0.5,
          "cacheWritePerMTok": 6.25,
          "currency": "USD",
          "validFrom": "2026-05-28T00:00:00Z",
          "source": "Anthropic official pricing and release evidence; retrieved 2026-09-12. https://www.anthropic.com/news/claude-opus-4-8; https://platform.claude.com/docs/en/about-claude/pricing; https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf",
          "sourceUrls": [
            "https://www.anthropic.com/news/claude-opus-4-8",
            "https://platform.claude.com/docs/en/about-claude/pricing",
            "https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Standard global Claude API rates; cache writes use the 5-minute duration. Base input/output rates are supported at public launch; exact launch-day cache tariffs are not independently dated for every category. Current cache rates verified on 2026-09-12. Dates use midnight UTC as a calendar-day convention, not a published intraday cutover. Also corroborated by the provider list-price PDF dated 2026-05-27.",
          "unconfirmed": false
        }
      ]
    },
    {
      "modelId": "claude-opus-4-7",
      "displayName": "Claude Opus 4.7",
      "vendor": "anthropic",
      "releaseDate": "2026-04-16",
      "releaseDateSource": "https://platform.claude.com/docs/en/release-notes/overview#april-16-2026",
      "note": null,
      "selectionStatus": "unsupported",
      "deprecated": false,
      "history": [
        {
          "inputPerMTok": 5,
          "outputPerMTok": 25,
          "cacheReadPerMTok": 0.5,
          "cacheWritePerMTok": 6.25,
          "currency": "USD",
          "validFrom": "2026-04-16T00:00:00Z",
          "source": "Anthropic official pricing and release evidence; retrieved 2026-09-12. https://www.anthropic.com/news/claude-opus-4-7; https://platform.claude.com/docs/en/about-claude/pricing; https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf",
          "sourceUrls": [
            "https://www.anthropic.com/news/claude-opus-4-7",
            "https://platform.claude.com/docs/en/about-claude/pricing",
            "https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Standard global Claude API rates; cache writes use the 5-minute duration. Base input/output rates are supported at public launch; exact launch-day cache tariffs are not independently dated for every category. Current cache rates verified on 2026-09-12. Dates use midnight UTC as a calendar-day convention, not a published intraday cutover. Also corroborated by the provider list-price PDF dated 2026-05-27.",
          "unconfirmed": false
        }
      ]
    },
    {
      "modelId": "claude-opus-4-6",
      "displayName": "Claude Opus 4.6",
      "vendor": "anthropic",
      "releaseDate": "2026-02-05",
      "releaseDateSource": "https://platform.claude.com/docs/en/models/opus-4-6/overview",
      "note": null,
      "selectionStatus": "unsupported",
      "deprecated": false,
      "history": [
        {
          "inputPerMTok": 5,
          "outputPerMTok": 25,
          "cacheReadPerMTok": 0.5,
          "cacheWritePerMTok": 6.25,
          "currency": "USD",
          "validFrom": "2026-02-05T00:00:00Z",
          "source": "Anthropic official pricing and release evidence; retrieved 2026-09-12. https://www.anthropic.com/news/claude-opus-4-6; https://platform.claude.com/docs/en/about-claude/pricing; https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf; https://platform.claude.com/docs/en/models/opus-4-6/overview",
          "sourceUrls": [
            "https://www.anthropic.com/news/claude-opus-4-6",
            "https://platform.claude.com/docs/en/about-claude/pricing",
            "https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf",
            "https://platform.claude.com/docs/en/models/opus-4-6/overview"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Standard global Claude API rates; cache writes use the 5-minute duration. Base input/output rates are supported at public launch; exact launch-day cache tariffs are not independently dated for every category. Current cache rates verified on 2026-09-12. Dates use midnight UTC as a calendar-day convention, not a published intraday cutover. Also corroborated by the provider list-price PDF dated 2026-05-27.",
          "unconfirmed": false
        }
      ]
    },
    {
      "modelId": "claude-opus-4-5",
      "displayName": "Claude Opus 4.5",
      "vendor": "anthropic",
      "releaseDate": "2025-11-24",
      "releaseDateSource": "https://platform.claude.com/docs/en/models/opus-4-5/overview",
      "note": "Standard Claude API rates are officially confirmed; earlier provisional pricing flags were corrected on 2026-09-12.",
      "selectionStatus": "unsupported",
      "deprecated": false,
      "history": [
        {
          "inputPerMTok": 5,
          "outputPerMTok": 25,
          "cacheReadPerMTok": 0.5,
          "cacheWritePerMTok": 6.25,
          "currency": "USD",
          "validFrom": "2025-11-24T00:00:00Z",
          "source": "Anthropic official pricing and release evidence; retrieved 2026-09-12. https://www.anthropic.com/news/claude-opus-4-5; https://platform.claude.com/docs/en/about-claude/pricing; https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf; https://platform.claude.com/docs/en/models/opus-4-5/overview",
          "sourceUrls": [
            "https://www.anthropic.com/news/claude-opus-4-5",
            "https://platform.claude.com/docs/en/about-claude/pricing",
            "https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf",
            "https://platform.claude.com/docs/en/models/opus-4-5/overview"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Standard global Claude API rates; cache writes use the 5-minute duration. Base input/output rates are supported at public launch; exact launch-day cache tariffs are not independently dated for every category. Current cache rates verified on 2026-09-12. Dates use midnight UTC as a calendar-day convention, not a published intraday cutover. Also corroborated by the provider list-price PDF dated 2026-05-27.",
          "unconfirmed": false
        }
      ]
    },
    {
      "modelId": "claude-opus-4-1",
      "displayName": "Claude Opus 4.1",
      "vendor": "anthropic",
      "releaseDate": "2025-08-05",
      "releaseDateSource": "https://platform.claude.com/docs/en/release-notes/overview#august-5-2025",
      "note": "Historical $15/$75 Standard Claude API prices confirmed. Direct API retired on 2026-08-05; kept for historical logs and deprecated-model comparison.",
      "selectionStatus": "deprecated",
      "deprecated": true,
      "history": [
        {
          "inputPerMTok": 15,
          "outputPerMTok": 75,
          "cacheReadPerMTok": 1.5,
          "cacheWritePerMTok": 18.75,
          "currency": "USD",
          "validFrom": "2025-08-05T00:00:00Z",
          "source": "Anthropic official pricing and release evidence; retrieved 2026-09-12. https://www.anthropic.com/news/claude-opus-4-1; https://platform.claude.com/docs/en/about-claude/pricing; https://www.anthropic.com/news/claude-4; https://platform.claude.com/docs/en/about-claude/model-deprecations; https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf",
          "sourceUrls": [
            "https://www.anthropic.com/news/claude-opus-4-1",
            "https://platform.claude.com/docs/en/about-claude/pricing",
            "https://www.anthropic.com/news/claude-4",
            "https://platform.claude.com/docs/en/about-claude/model-deprecations",
            "https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Standard global Claude API rates; cache writes use the 5-minute duration. Base input/output rates are supported at public launch; exact launch-day cache tariffs are not independently dated for every category. Current cache rates verified on 2026-09-12. Dates use midnight UTC as a calendar-day convention, not a published intraday cutover. Direct Claude API retired on 2026-08-05; historical price lookup does not imply present availability. Also corroborated by the provider list-price PDF dated 2026-05-27.",
          "unconfirmed": false
        }
      ]
    },
    {
      "modelId": "claude-sonnet-4-6",
      "displayName": "Claude Sonnet 4.6",
      "vendor": "anthropic",
      "releaseDate": "2026-02-17",
      "releaseDateSource": "https://platform.claude.com/docs/en/models/sonnet-4-6/overview",
      "note": null,
      "selectionStatus": "unsupported",
      "deprecated": false,
      "history": [
        {
          "inputPerMTok": 3,
          "outputPerMTok": 15,
          "cacheReadPerMTok": 0.3,
          "cacheWritePerMTok": 3.75,
          "currency": "USD",
          "validFrom": "2026-02-17T00:00:00Z",
          "source": "Anthropic official pricing and release evidence; retrieved 2026-09-12. https://www.anthropic.com/news/claude-sonnet-4-6; https://platform.claude.com/docs/en/about-claude/pricing; https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf; https://platform.claude.com/docs/en/models/sonnet-4-6/overview",
          "sourceUrls": [
            "https://www.anthropic.com/news/claude-sonnet-4-6",
            "https://platform.claude.com/docs/en/about-claude/pricing",
            "https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf",
            "https://platform.claude.com/docs/en/models/sonnet-4-6/overview"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Standard global Claude API rates; cache writes use the 5-minute duration. Base input/output rates are supported at public launch; exact launch-day cache tariffs are not independently dated for every category. Current cache rates verified on 2026-09-12. Dates use midnight UTC as a calendar-day convention, not a published intraday cutover. Also corroborated by the provider list-price PDF dated 2026-05-27.",
          "unconfirmed": false
        }
      ]
    },
    {
      "modelId": "claude-sonnet-4-5",
      "displayName": "Claude Sonnet 4.5",
      "vendor": "anthropic",
      "releaseDate": "2025-09-29",
      "releaseDateSource": "https://platform.claude.com/docs/en/release-notes/overview#september-29-2025",
      "note": "Standard Claude API rates are officially confirmed; earlier provisional pricing flags were corrected on 2026-09-12.",
      "selectionStatus": "unsupported",
      "deprecated": false,
      "history": [
        {
          "inputPerMTok": 3,
          "outputPerMTok": 15,
          "cacheReadPerMTok": 0.3,
          "cacheWritePerMTok": 3.75,
          "currency": "USD",
          "validFrom": "2025-09-29T00:00:00Z",
          "source": "Anthropic official pricing and release evidence; retrieved 2026-09-12. https://www.anthropic.com/news/claude-sonnet-4-5; https://platform.claude.com/docs/en/about-claude/pricing; https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf; https://platform.claude.com/docs/en/models/sonnet-4-5/overview",
          "sourceUrls": [
            "https://www.anthropic.com/news/claude-sonnet-4-5",
            "https://platform.claude.com/docs/en/about-claude/pricing",
            "https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf",
            "https://platform.claude.com/docs/en/models/sonnet-4-5/overview"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Standard global Claude API rates; cache writes use the 5-minute duration. Base input/output rates are supported at public launch; exact launch-day cache tariffs are not independently dated for every category. Current cache rates verified on 2026-09-12. Dates use midnight UTC as a calendar-day convention, not a published intraday cutover. Also corroborated by the provider list-price PDF dated 2026-05-27.",
          "unconfirmed": false
        }
      ]
    },
    {
      "modelId": "claude-haiku-4-5",
      "displayName": "Claude Haiku 4.5",
      "vendor": "anthropic",
      "releaseDate": "2025-10-15",
      "releaseDateSource": "https://platform.claude.com/docs/en/models/haiku-4-5/overview",
      "note": null,
      "selectionStatus": "selectable",
      "deprecated": false,
      "history": [
        {
          "inputPerMTok": 1,
          "outputPerMTok": 5,
          "cacheReadPerMTok": 0.1,
          "cacheWritePerMTok": 1.25,
          "currency": "USD",
          "validFrom": "2025-10-15T00:00:00Z",
          "source": "Anthropic official pricing and release evidence; retrieved 2026-09-12. https://www.anthropic.com/news/claude-haiku-4-5; https://platform.claude.com/docs/en/about-claude/pricing; https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf; https://platform.claude.com/docs/en/models/haiku-4-5/overview",
          "sourceUrls": [
            "https://www.anthropic.com/news/claude-haiku-4-5",
            "https://platform.claude.com/docs/en/about-claude/pricing",
            "https://www-cdn.anthropic.com/files/4zrzovbb/website/3684c2faafb97418665782cea0001f439f74b1d2.pdf",
            "https://platform.claude.com/docs/en/models/haiku-4-5/overview"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Standard global Claude API rates; cache writes use the 5-minute duration. Base input/output rates are supported at public launch; exact launch-day cache tariffs are not independently dated for every category. Current cache rates verified on 2026-09-12. Dates use midnight UTC as a calendar-day convention, not a published intraday cutover. Also corroborated by the provider list-price PDF dated 2026-05-27.",
          "unconfirmed": false
        }
      ]
    },
    {
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      "displayName": "GPT-6 Astra",
      "vendor": "openai",
      "releaseDate": "2026-09-03",
      "releaseDateSource": "https://openai.com/index/safety-overview-gpt-6-astra/",
      "note": null,
      "selectionStatus": "selectable",
      "deprecated": false,
      "history": [
        {
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          "inputPerMTok": 10,
          "cacheReadPerMTok": 1,
          "cacheWritePerMTok": 12.5,
          "outputPerMTok": 50,
          "currency": "USD",
          "source": "OpenAI official direct API pricing and dated release/changelog evidence; retrieved 2026-09-12. https://openai.com/index/gpt-6-astra/; https://developers.openai.com/api/docs/changelog; https://developers.openai.com/api/docs/pricing; https://developers.openai.com/api/docs/guides/prompt-caching; https://developers.openai.com/api/docs/models/gpt-6-astra",
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            "https://developers.openai.com/api/docs/changelog",
            "https://developers.openai.com/api/docs/pricing",
            "https://developers.openai.com/api/docs/guides/prompt-caching",
            "https://developers.openai.com/api/docs/models/gpt-6-astra"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Standard short-context direct API tariff. Launch date confirmed by API changelog. Dates are normalized to midnight UTC from provider calendar-day announcements; exact intraday billing cutover was not published.",
          "unconfirmed": false
        }
      ]
    },
    {
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      "releaseDate": "2026-09-22",
      "releaseDateSource": "https://developers.openai.com/api/docs/changelog",
      "note": null,
      "selectionStatus": "selectable",
      "deprecated": false,
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          "cacheReadPerMTok": 0.2,
          "cacheWritePerMTok": 2.5,
          "outputPerMTok": 10,
          "currency": "USD",
          "source": "OpenAI official pricing, model, and dated changelog evidence; retrieved 2026-09-24. https://developers.openai.com/api/docs/changelog; https://developers.openai.com/api/docs/pricing; https://developers.openai.com/api/docs/models/gpt-6-sol",
          "sourceUrls": [
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            "https://developers.openai.com/api/docs/pricing",
            "https://developers.openai.com/api/docs/models/gpt-6-sol"
          ],
          "verifiedOn": "2026-09-24",
          "validFromBasis": "provider-announced-date",
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    },
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      "displayName": "GPT-6 Luna",
      "vendor": "openai",
      "releaseDate": "2026-09-22",
      "releaseDateSource": "https://developers.openai.com/api/docs/changelog",
      "note": null,
      "selectionStatus": "selectable",
      "deprecated": false,
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          "cacheReadPerMTok": 0.01,
          "cacheWritePerMTok": 0.125,
          "outputPerMTok": 0.5,
          "currency": "USD",
          "source": "OpenAI official pricing, model, and dated changelog evidence; retrieved 2026-09-24. https://developers.openai.com/api/docs/changelog; https://developers.openai.com/api/docs/pricing; https://developers.openai.com/api/docs/models/gpt-6-luna",
          "sourceUrls": [
            "https://developers.openai.com/api/docs/changelog",
            "https://developers.openai.com/api/docs/pricing",
            "https://developers.openai.com/api/docs/models/gpt-6-luna"
          ],
          "verifiedOn": "2026-09-24",
          "validFromBasis": "provider-announced-date",
          "note": "Standard short-context direct API tariff; OpenAI cache writes use 1.25x input. Prompts over 272K input tokens use $0.20 input, $0.02 cached input, $0.25 cache write, and $0.75 output per MTok for the full request. Batch and Flex are 50% of Standard; Fast mode is 2x the applicable rate. Alternate processing modes are not represented by this standard-rate entry. Dates use midnight UTC as a calendar-day convention, not a published intraday billing cutover.",
          "unconfirmed": false
        }
      ]
    },
    {
      "modelId": "gpt-5.6-luna",
      "displayName": "GPT-5.6 Luna",
      "vendor": "openai",
      "releaseDate": "2026-06-26",
      "releaseDateSource": "https://openai.com/index/previewing-gpt-5-6-sol/",
      "note": null,
      "selectionStatus": "selectable",
      "deprecated": false,
      "history": [
        {
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          "validTo": "2026-07-29T23:59:59.9999999Z",
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          "cacheReadPerMTok": 0.1,
          "cacheWritePerMTok": 1.25,
          "outputPerMTok": 6,
          "currency": "USD",
          "source": "OpenAI official direct API pricing and dated release/changelog evidence; retrieved 2026-09-12. https://openai.com/index/previewing-gpt-5-6-sol/; https://openai.com/index/gpt-5-6/; https://developers.openai.com/api/docs/pricing; https://developers.openai.com/api/docs/models/gpt-5.6-luna",
          "sourceUrls": [
            "https://openai.com/index/previewing-gpt-5-6-sol/",
            "https://openai.com/index/gpt-5-6/",
            "https://developers.openai.com/api/docs/pricing",
            "https://developers.openai.com/api/docs/models/gpt-5.6-luna"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Limited-preview API rate; unchanged at July 9 GA. Dates are normalized to midnight UTC from provider calendar-day announcements; exact intraday billing cutover was not published.",
          "unconfirmed": false
        },
        {
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          "cacheReadPerMTok": 0.02,
          "cacheWritePerMTok": 0.25,
          "outputPerMTok": 1.2,
          "currency": "USD",
          "source": "OpenAI official direct API pricing and dated release/changelog evidence; retrieved 2026-09-12. https://developers.openai.com/api/docs/changelog; https://openai.com/index/gpt-5-6/; https://developers.openai.com/api/docs/pricing; https://developers.openai.com/api/docs/models/gpt-5.6-luna",
          "sourceUrls": [
            "https://developers.openai.com/api/docs/changelog",
            "https://openai.com/index/gpt-5-6/",
            "https://developers.openai.com/api/docs/pricing",
            "https://developers.openai.com/api/docs/models/gpt-5.6-luna"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "80% reduction effective July 30. Dates are normalized to midnight UTC from provider calendar-day announcements; exact intraday billing cutover was not published.",
          "unconfirmed": false
        }
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    },
    {
      "modelId": "gpt-5.6-terra",
      "displayName": "GPT-5.6 Terra",
      "vendor": "openai",
      "releaseDate": "2026-06-26",
      "releaseDateSource": "https://openai.com/index/previewing-gpt-5-6-sol/",
      "note": null,
      "selectionStatus": "selectable",
      "deprecated": false,
      "history": [
        {
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          "validTo": "2026-07-29T23:59:59.9999999Z",
          "inputPerMTok": 2.5,
          "cacheReadPerMTok": 0.25,
          "cacheWritePerMTok": 3.125,
          "outputPerMTok": 15,
          "currency": "USD",
          "source": "OpenAI official direct API pricing and dated release/changelog evidence; retrieved 2026-09-12. https://openai.com/index/previewing-gpt-5-6-sol/; https://openai.com/index/gpt-5-6/; https://developers.openai.com/api/docs/pricing; https://developers.openai.com/api/docs/models/gpt-5.6-terra",
          "sourceUrls": [
            "https://openai.com/index/previewing-gpt-5-6-sol/",
            "https://openai.com/index/gpt-5-6/",
            "https://developers.openai.com/api/docs/pricing",
            "https://developers.openai.com/api/docs/models/gpt-5.6-terra"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Limited-preview API rate; unchanged at July 9 GA. Dates are normalized to midnight UTC from provider calendar-day announcements; exact intraday billing cutover was not published.",
          "unconfirmed": false
        },
        {
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          "cacheReadPerMTok": 0.2,
          "cacheWritePerMTok": 2.5,
          "outputPerMTok": 12,
          "currency": "USD",
          "source": "OpenAI official direct API pricing and dated release/changelog evidence; retrieved 2026-09-12. https://developers.openai.com/api/docs/changelog; https://openai.com/index/gpt-5-6/; https://developers.openai.com/api/docs/pricing; https://developers.openai.com/api/docs/models/gpt-5.6-terra",
          "sourceUrls": [
            "https://developers.openai.com/api/docs/changelog",
            "https://openai.com/index/gpt-5-6/",
            "https://developers.openai.com/api/docs/pricing",
            "https://developers.openai.com/api/docs/models/gpt-5.6-terra"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "20% reduction effective July 30. Dates are normalized to midnight UTC from provider calendar-day announcements; exact intraday billing cutover was not published.",
          "unconfirmed": false
        }
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    },
    {
      "modelId": "gpt-5.6-sol",
      "displayName": "GPT-5.6 Sol",
      "vendor": "openai",
      "releaseDate": "2026-06-26",
      "releaseDateSource": "https://openai.com/index/previewing-gpt-5-6-sol/",
      "note": "GPT-5.6 Sol; gpt-5.6 remains a compatibility alias. The current promotion began 2026-08-21 and is available at least through 2026-11-21; no reversion date or future rate is announced.",
      "selectionStatus": "selectable",
      "deprecated": false,
      "history": [
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          "cacheReadPerMTok": 0.5,
          "cacheWritePerMTok": 6.25,
          "outputPerMTok": 30,
          "currency": "USD",
          "source": "OpenAI official direct API pricing and dated release/changelog evidence; retrieved 2026-09-12. https://openai.com/index/previewing-gpt-5-6-sol/; https://openai.com/index/gpt-5-6/; https://developers.openai.com/api/docs/changelog; https://developers.openai.com/api/docs/pricing; https://developers.openai.com/api/docs/models/gpt-5.6-sol",
          "sourceUrls": [
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            "https://developers.openai.com/api/docs/pricing",
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          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Limited-preview API rate; unchanged at July 9 GA. Dates are normalized to midnight UTC from provider calendar-day announcements; exact intraday billing cutover was not published.",
          "unconfirmed": false
        },
        {
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          "inputPerMTok": 4,
          "cacheReadPerMTok": 0.4,
          "cacheWritePerMTok": 5,
          "outputPerMTok": 20,
          "currency": "USD",
          "source": "OpenAI official direct API pricing and dated release/changelog evidence; retrieved 2026-09-12. https://developers.openai.com/api/docs/changelog; https://openai.com/index/gpt-5-6/; https://developers.openai.com/api/docs/pricing; https://developers.openai.com/api/docs/models/gpt-5.6-sol",
          "sourceUrls": [
            "https://developers.openai.com/api/docs/changelog",
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            "https://developers.openai.com/api/docs/pricing",
            "https://developers.openai.com/api/docs/models/gpt-5.6-sol"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Promotion began August 21, not September 3. Guaranteed at least through November 21; no announced reversion date/rate. Dates are normalized to midnight UTC from provider calendar-day announcements; exact intraday billing cutover was not published.",
          "unconfirmed": false
        }
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    },
    {
      "modelId": "gpt-5.4-mini",
      "displayName": "GPT-5.4 Mini",
      "vendor": "openai",
      "releaseDate": "2026-03-17",
      "releaseDateSource": "https://openai.com/index/introducing-gpt-5-4-mini-and-nano/",
      "note": null,
      "selectionStatus": "selectable",
      "deprecated": false,
      "history": [
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          "validFrom": "2026-03-17T00:00:00Z",
          "inputPerMTok": 0.75,
          "cacheReadPerMTok": 0.075,
          "outputPerMTok": 4.5,
          "currency": "USD",
          "source": "OpenAI official direct API pricing and dated release/changelog evidence; retrieved 2026-09-12. https://openai.com/index/introducing-gpt-5-4-mini-and-nano/; https://developers.openai.com/api/docs/changelog; https://developers.openai.com/api/docs/pricing; https://developers.openai.com/api/docs/guides/prompt-caching; https://developers.openai.com/api/docs/models/gpt-5.4-mini",
          "sourceUrls": [
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            "https://developers.openai.com/api/docs/changelog",
            "https://developers.openai.com/api/docs/pricing",
            "https://developers.openai.com/api/docs/guides/prompt-caching",
            "https://developers.openai.com/api/docs/models/gpt-5.4-mini"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Launch input/output rates unchanged in current table. Cached rate confirmed currently; no separately dated cached-rate change found. No cache-write surcharge. Dates are normalized to midnight UTC from provider calendar-day announcements; exact intraday billing cutover was not published.",
          "unconfirmed": false
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    {
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      "displayName": "GPT-5.5",
      "vendor": "openai",
      "releaseDate": "2026-04-23",
      "releaseDateSource": "https://openai.com/index/introducing-gpt-5-5/",
      "note": null,
      "selectionStatus": "unsupported",
      "deprecated": false,
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          "cacheReadPerMTok": 0.5,
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          "currency": "USD",
          "source": "OpenAI official direct API pricing and dated release/changelog evidence; retrieved 2026-09-12. https://openai.com/index/introducing-gpt-5-5/; https://developers.openai.com/api/docs/changelog; https://developers.openai.com/api/docs/pricing; https://developers.openai.com/api/docs/guides/prompt-caching; https://developers.openai.com/api/docs/models/gpt-5.5",
          "sourceUrls": [
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            "https://developers.openai.com/api/docs/guides/prompt-caching",
            "https://developers.openai.com/api/docs/models/gpt-5.5"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "April 23 announced tariff; API first released April 24. Cached rate confirmed currently; no dated change found. No cache-write surcharge. Dates are normalized to midnight UTC from provider calendar-day announcements; exact intraday billing cutover was not published. API availability began on 2026-04-24; ChatGPT/Codex publication on 2026-04-23 is a separate date.",
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      "displayName": "GPT-5.5 Pro",
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      "releaseDate": "2026-04-23",
      "releaseDateSource": "https://openai.com/index/introducing-gpt-5-5/",
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          "currency": "USD",
          "source": "OpenAI official direct API pricing and dated release/changelog evidence; retrieved 2026-09-12. https://openai.com/index/introducing-gpt-5-5/; https://developers.openai.com/api/docs/changelog; https://developers.openai.com/api/docs/pricing; https://developers.openai.com/api/docs/models/gpt-5.5-pro",
          "sourceUrls": [
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            "https://developers.openai.com/api/docs/changelog",
            "https://developers.openai.com/api/docs/pricing",
            "https://developers.openai.com/api/docs/models/gpt-5.5-pro"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "API first released April 24. No cached-input discount and no cache-write surcharge. Dates are normalized to midnight UTC from provider calendar-day announcements; exact intraday billing cutover was not published. API availability began on 2026-04-24; ChatGPT/Codex publication on 2026-04-23 is a separate date.",
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      "vendor": "openai",
      "releaseDate": "2026-05-07",
      "releaseDateSource": "https://openai.com/index/gpt-5-5-with-trusted-access-for-cyber/",
      "note": "Restricted-access Cyber model; gpt-5.5-cyber is its pricing-table alias. Current price is confirmed, while the first historical price date remains a release-date inference.",
      "selectionStatus": "restricted",
      "deprecated": false,
      "history": [
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          "outputPerMTok": 75.0,
          "cacheReadPerMTok": 1.25,
          "currency": "USD",
          "validFrom": "2026-05-07T00:00:00Z",
          "source": "OpenAI official direct API pricing and dated release/changelog evidence; retrieved 2026-09-12. https://developers.openai.com/api/docs/pricing; https://openai.com/index/gpt-5-5-with-trusted-access-for-cyber/; https://help.openai.com/en/articles/20001259",
          "sourceUrls": [
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            "https://openai.com/index/gpt-5-5-with-trusted-access-for-cyber/",
            "https://help.openai.com/en/articles/20001259"
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          "verifiedOn": "2026-09-12",
          "validFromBasis": "release-date-inference",
          "note": "Current Standard direct API price confirmed on 2026-09-12; price effective date is inferred from the 2026-05-07 release, whose announcement gives no numeric tariff. Restricted Responses API access; not general availability. Dates are normalized to midnight UTC from provider calendar-day announcements; exact intraday billing cutover was not published.",
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    {
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      "displayName": "GPT-5",
      "vendor": "openai",
      "releaseDate": "2025-08-07",
      "releaseDateSource": "https://openai.com/index/introducing-gpt-5/",
      "note": "Historical Standard direct API prices are confirmed. Routing policy and API lifecycle are independent of price coverage.",
      "selectionStatus": "unsupported",
      "deprecated": false,
      "history": [
        {
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          "inputPerMTok": 1.25,
          "cacheReadPerMTok": 0.125,
          "outputPerMTok": 10,
          "currency": "USD",
          "source": "OpenAI official direct API pricing and dated release/changelog evidence; retrieved 2026-09-12. https://openai.com/index/introducing-gpt-5-for-developers/; https://developers.openai.com/api/docs/changelog; https://developers.openai.com/api/docs/pricing; https://developers.openai.com/api/docs/models/gpt-5",
          "sourceUrls": [
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            "https://developers.openai.com/api/docs/changelog",
            "https://developers.openai.com/api/docs/pricing",
            "https://developers.openai.com/api/docs/models/gpt-5"
          ],
          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Backfill omitted published price. Input/output launch rates unchanged in current table. Cached rate confirmed currently; no dated change found. Add gpt-5-2025-08-07 snapshot alias. Dates are normalized to midnight UTC from provider calendar-day announcements; exact intraday billing cutover was not published.",
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      "note": "Historical Standard direct API prices are confirmed. Routing policy and API lifecycle are independent of price coverage.",
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          "currency": "USD",
          "source": "OpenAI official direct API pricing and dated release/changelog evidence; retrieved 2026-09-12. https://learn.chatgpt.com/docs/changelog#codex-2025-09-23; https://developers.openai.com/api/docs/changelog; https://developers.openai.com/api/docs/models/gpt-5-codex; https://developers.openai.com/api/docs/pricing",
          "sourceUrls": [
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            "https://developers.openai.com/api/docs/changelog",
            "https://developers.openai.com/api/docs/models/gpt-5-codex",
            "https://developers.openai.com/api/docs/pricing"
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          "verifiedOn": "2026-09-12",
          "validFromBasis": "provider-announced-date",
          "note": "Historical API tariff; API launch September 23 followed ChatGPT-sign-in release September 15. Provider says API price equals GPT-5. API shut down July 23, 2026; open price period must not imply present availability. Dates are normalized to midnight UTC from provider calendar-day announcements; exact intraday billing cutover was not published. API became available on 2025-09-23 after Codex subscription access on 2025-09-15; direct API retired on 2026-07-23. Historical price resolution does not imply present availability.",
          "unconfirmed": false
        }
      ]
    }
  ]
}