{"entity":"claude-haiku-5-5","id":"ent_claude-haiku-5-5","name":"Claude Haiku 5.5","predicate":"context_window","lineage":"https://asof.is/models/claude","label":"context window","page":"https://asof.is/record/claude-haiku-5-5/context_window","as_of":"2026-11-07","summary":"As of November 7, 2026, Claude Haiku 5.5's context window on the AsOf record is 1 M token context window, dated October 7, 2026, from a primary source (platform.claude.com). The record holds 1 claim on Claude Haiku 5.5's context window, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.","current":["clm_85DCE698D303"],"latest_period":null,"claims":[{"id":"clm_85DCE698D303","value":"1M token context window","valid_from":"2026-10-07","valid_to":null,"published":"2026-10-07","recorded":"2026-11-06","confidence":0.7,"status":"valid","assertable":true,"superseded_by":null,"sources":[{"url":"https://platform.claude.com/docs/en/release-notes/overview#2026-10-07","tier":"primary","publisher":"Anthropic","published_at":"2026-10-07T00:00:00+00:00"}],"evidence":{"by":"page-read","on":"2026-11-06","quote":"We’ve launched Claude Haiku 5.5 ( claude-haiku-5-5 ), our most capable model tuned for high-volume and latency-sensitive work. It has a 1M token context window , 128k max output tokens, and adaptive thinking with the effort parameter .","url":"https://platform.claude.com/docs/en/release-notes/overview#2026-10-07","excerpt":"We’ve lowered the price of prompt cache reads on Claude Sonnet 5.5 from $0.20 USD to $0.10 USD per million tokens: 0.05x the base input price instead of 0.1x. Cache writes and all other prices are unchanged. See Prompt caching pricing . · We’ve launched Claude Haiku 5.5 ( claude-haiku-5-5 ), our mos"}}],"replaced":[],"faq":[{"question":"What is Claude Haiku 5.5's current context window?","answer":"1 M token context window, dated October 7, 2026, from a primary source (platform.claude.com). The record asserts this claim as of November 7, 2026 (status valid, confidence 0.70)."}],"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.","why_not":{},"checked_by":{"page-read":"its source page states the value and the date"}}}