{"id":"openai/gpt-5.5-pro","aliases":["openrouter:openai/gpt-5.5-pro"],"displayName":"OpenAI: GPT-5.5 Pro","author":"openai","createdAt":"2026-04-24T17:31:36.000Z","updatedAt":"2026-09-08T15:44:27.512Z","metadata":{"modalities":["file","image","text"],"inputModalities":["text","image","pdf"],"outputModalities":["text"],"contextLength":1050000,"maxOutputTokens":128000,"family":"gpt-pro","modelsDev":{"provider":"openrouter","sourceUrl":"https://models.dev/api.json","description":"Highest-accuracy GPT-5.5 tier for slower, precision-heavy reasoning and coding","lastUpdated":"2026-04-23","releaseDate":"2026-04-23","capabilities":{"reasoning":true,"tool_call":true,"attachment":true,"temperature":false,"open_weights":false,"structured_output":true},"maxInputTokens":922000,"knowledgeCutoff":"2025-12-01"},"licenseStatus":"unknown","weightsAvailable":false,"hostedInferenceAllowed":false,"gated":false,"providerNames":[]},"availability":"unknown","externalBest":null,"multivibeNetwork":null,"description":"Highest-accuracy GPT-5.5 tier for slower, precision-heavy reasoning and coding","runtimes":[],"protocols":[],"harnesses":[]}