{"entity":"claude-sonnet-4-6","id":"ent_claude-sonnet-4-6","name":"Claude Sonnet 4.6","predicate":"model_release","label":"release date","page":"https://asof.is/record/claude-sonnet-4-6/model_release","as_of":"2026-11-04","summary":"As of November 4, 2026, the AsOf record says Claude Sonnet 4.6 was released on February 17, 2026, from a primary source (platform.claude.com). The record holds 1 claim on Claude Sonnet 4.6's release, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.","current":["clm_9E78052E1A8A"],"latest_period":null,"claims":[{"id":"clm_9E78052E1A8A","value":"Claude Sonnet 4.6","valid_from":"2026-02-17","valid_to":null,"published":null,"recorded":"2026-11-04","confidence":0.95,"status":"valid","assertable":true,"superseded_by":null,"sources":[{"url":"https://platform.claude.com/docs/en/release-notes/overview","tier":"primary","publisher":"Anthropic (Claude Platform release notes)","published_at":null}],"evidence":{"by":"page-read","on":"2026-11-04","quote":"February 17, 2026 We’ve launched Claude Sonnet 4.6 , our latest balanced model combining speed and intelligence for everyday tasks.","url":"https://platform.claude.com/docs/en/release-notes/overview"}}],"replaced":[],"faq":[{"question":"When was Claude Sonnet 4.6 released?","answer":"On February 17, 2026, from a primary source (platform.claude.com) (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"}}}