{"entity":"claude-opus-4-1","name":"Claude Opus 4.1","events":[{"date":"2025-08-05","until":null,"published":null,"recorded":"2026-11-04","predicate":"model_release","value":"Claude Opus 4.1","status":"valid","assertable":true,"id":"clm_234B67F53ADD","evidence":{"by":"page-read","on":"2026-11-04","quote":"August 5, 2025 We’ve launched Claude Opus 4.1 , an incremental update to Claude Opus 4 with enhanced capabilities and performance improvements.","url":"https://platform.claude.com/docs/en/release-notes/overview"}},{"date":"2025-08-05","until":null,"published":null,"recorded":"2026-11-04","predicate":"predecessor","value":"Claude Opus 4","status":"valid","assertable":true,"id":"clm_BBADFC6DA1EF","evidence":{"by":"page-read","on":"2026-11-04","quote":"August 5, 2025 We’ve launched Claude Opus 4.1 , an incremental update to Claude Opus 4 with enhanced capabilities and performance improvements.","url":"https://platform.claude.com/docs/en/release-notes/overview"}},{"date":"2026-06-05","until":null,"published":null,"recorded":"2026-11-04","predicate":"deprecated","value":"claude-opus-4-1-20250805","status":"valid","assertable":true,"id":"clm_C4A9E812D526","evidence":{"by":"page-read","on":"2026-11-04","quote":"claude-opus-4-1-20250805 Retired June 5, 2026 August 5, 2026","url":"https://platform.claude.com/docs/en/about-claude/model-deprecations"}},{"date":"2026-08-05","until":null,"published":null,"recorded":"2026-11-04","predicate":"retired","value":"claude-opus-4-1-20250805","status":"valid","assertable":true,"id":"clm_D5B285E2BC53","evidence":{"by":"page-read","on":"2026-11-04","quote":"claude-opus-4-1-20250805 Retired June 5, 2026 August 5, 2026","url":"https://platform.claude.com/docs/en/about-claude/model-deprecations"}}],"complete":true,"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"}}}