{"id":"clm_5D6D78810CBD","entity":"claude","predicate":"context_window","value":"1M token context window","value_json":{"feed":"claude-platform-release-notes","item":"https://platform.claude.com/docs/en/release-notes/overview#2026-03-30","tags":{"v":2,"ai":true,"by":"claude-haiku-5-5","on":"2026-11-01","themes":["pricing_access"]},"check":{"on":"2026-11-01","url":"https://platform.claude.com/docs/en/release-notes/overview#2026-03-30","pages":1,"quote":"To continue using 1M context windows, migrate to Claude Sonnet 4.6 or Claude Opus 4.6 , which support the full 1M token context window at standard pricing with no beta header required.","outcome":"checked"},"evidence":"We’ve raised the max_tokens cap to 300k on the Message Batches API for Claude Opus 4.6 and Sonnet 4.6. Include the output-300k-2026-03-24 beta header to generate longer single-turn outputs for long-form content, structured data, and large code generation tasks. · We’re retiring the 1M token context ","extracted_by":"claude-haiku-5-5","primary_source":true},"valid_from":"2026-03-30","valid_to":"2026-04-20","published":"2026-03-30","recorded":"2026-11-01","citation":{"plain":"AsOf. \"Claude context window: 1M token context window\", as of 2026-03-30 (until 2026-04-20). Claim clm_5D6D78810CBD, https://asof.is/claim/clm_5D6D78810CBD, accessed 2026-11-09. Source: https://platform.claude.com/docs/en/release-notes/overview#2026-03-30.","url":"https://asof.is/claim/clm_5D6D78810CBD","accessed":"2026-11-09"},"confidence":0.7,"status":"superseded","assertable":true,"superseded_by":"clm_849B1F10CFD0","supersedes":[],"first_seen_at":"2026-11-01T19:33:58.063867+00:00","updated_at":"2026-11-01T23:16:00.299262+00:00","sources":[{"url":"https://platform.claude.com/docs/en/release-notes/overview#2026-03-30","tier":"primary","publisher":"Anthropic","published_at":"2026-03-30T00:00:00+00:00"}],"evidence":{"by":"page-read","on":"2026-11-01","quote":"To continue using 1M context windows, migrate to Claude Sonnet 4.6 or Claude Opus 4.6 , which support the full 1M token context window at standard pricing with no beta header required.","url":"https://platform.claude.com/docs/en/release-notes/overview#2026-03-30","excerpt":"We’ve raised the max_tokens cap to 300k on the Message Batches API for Claude Opus 4.6 and Sonnet 4.6. Include the output-300k-2026-03-24 beta header to generate longer single-turn outputs for long-form content, structured data, and large code generation tasks. · We’re retiring the 1M token context"},"legend":{"dates":"valid_from: when the claim took effect (a period figure: the day its period closed). published: the earliest day a source on the record published it (a filing's filing date, a post's date; null when no source carries one). recorded: the day AsOf first held it. A figure can take effect weeks before it is published.","citation":"citation: how to cite the row (plain: one sentence with the value, its as-of date, the claim id and URL, the day answered and the primary source; url: the claim page; accessed: the day answered). APA and BibTeX forms are on the claim page.","why_not":{},"checked_by":{"page-read":"its source page states the value and the date"}}}