{"entity":"claude-2-1","id":"ent_claude-2-1","name":"Claude 2.1","predicate":"context_window","label":"context window","page":"https://asof.is/record/claude-2-1/context_window","as_of":"2026-11-04","summary":"As of November 4, 2026, Claude 2.1's context window on the AsOf record is 200 K token context window, dated November 21, 2023, from a primary source (anthropic.com). The record holds 1 claim on Claude 2.1's context window, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never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_EB2E8F209197"],"latest_period":null,"claims":[{"id":"clm_EB2E8F209197","value":"200K token context window","valid_from":"2023-11-21","valid_to":null,"published":"2023-11-21","recorded":"2026-11-04","confidence":0.95,"status":"valid","assertable":true,"superseded_by":null,"sources":[{"url":"https://www.anthropic.com/news/claude-2-1","tier":"primary","publisher":"Anthropic","published_at":"2023-11-21T00:00:00+00:00"}],"evidence":{"by":"page-read","on":"2026-11-04","quote":"Claude 2.1 delivers advancements in key capabilities for enterprises—including an industry-leading 200K token context window, significant reductions in rates of model hallucination, system prompts and our new beta feature: tool use.","url":"https://www.anthropic.com/news/claude-2-1"}}],"replaced":[],"faq":[{"question":"What is Claude 2.1's current context window?","answer":"200 K token context window, dated November 21, 2023, from a primary source (anthropic.com). The record asserts this claim as of November 4, 2026 (status valid, confidence 0.95)."}],"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"}}}