{"entity":"claude-sonnet-4","id":"ent_claude-sonnet-4","name":"Claude Sonnet 4","predicate":"retired","label":"retirement","page":"https://asof.is/record/claude-sonnet-4/retired","as_of":"2026-11-04","summary":"As of November 4, 2026, the AsOf record says Claude Sonnet 4 was retired on June 15, 2026 (as claude-sonnet-4-20250514), from a primary source (platform.claude.com). The record holds 1 claim on Claude Sonnet 4's retirement, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.","current":["clm_A77C1EA3626C"],"latest_period":null,"claims":[{"id":"clm_A77C1EA3626C","value":"claude-sonnet-4-20250514","valid_from":"2026-06-15","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/about-claude/model-deprecations","tier":"primary","publisher":"Anthropic (docs, model deprecations)","published_at":null}],"evidence":{"by":"page-read","on":"2026-11-04","quote":"claude-sonnet-4-20250514 Retired April 14, 2026 June 15, 2026","url":"https://platform.claude.com/docs/en/about-claude/model-deprecations"}}],"replaced":[],"faq":[{"question":"When was Claude Sonnet 4 retired?","answer":"On June 15, 2026 (as claude-sonnet-4-20250514), 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"}}}