{"entity":"claude-opus-4-1","id":"ent_claude-opus-4-1","name":"Claude Opus 4.1","predicate":"predecessor","label":"predecessor","page":"https://asof.is/record/claude-opus-4-1/predecessor","as_of":"2026-11-04","summary":"As of November 4, 2026, Claude Opus 4.1's predecessor on the AsOf record is Claude Opus 4, dated August 5, 2025, from a primary source (platform.claude.com). The record holds 1 claim on Claude Opus 4.1's predecessor, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.","current":["clm_BBADFC6DA1EF"],"latest_period":null,"claims":[{"id":"clm_BBADFC6DA1EF","value":"Claude Opus 4","valid_from":"2025-08-05","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":"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"}}],"replaced":[],"faq":[{"question":"What is Claude Opus 4.1's current predecessor?","answer":"Claude Opus 4, dated August 5, 2025, from a primary source (platform.claude.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"}}}