{"entity":"claude-opus-4-8","id":"ent_claude-opus-4-8","name":"Claude Opus 4.8","predicate":"predecessor","label":"predecessor","page":"https://asof.is/record/claude-opus-4-8/predecessor","as_of":"2026-11-04","summary":"As of November 4, 2026, Claude Opus 4.8's predecessor on the AsOf record is Opus 4.7, dated May 28, 2026, from a primary source (support.claude.com). The record holds 1 claim on Claude Opus 4.8's predecessor, 1 still open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never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_E91575B30B2E"],"latest_period":null,"claims":[{"id":"clm_E91575B30B2E","value":"Opus 4.7","valid_from":"2026-05-28","valid_to":null,"published":null,"recorded":"2026-11-04","confidence":0.95,"status":"valid","assertable":true,"superseded_by":null,"sources":[{"url":"https://support.claude.com/en/articles/12138966-release-notes","tier":"primary","publisher":"Anthropic (news)","published_at":null}],"evidence":{"by":"page-read","on":"2026-11-04","quote":"May 28, 2026 Claude Opus 4.8 launch We’ve upgraded Claude Opus to a new version. Claude Opus 4.8 shows improvements over Opus 4.7 in coding, agentic skills, reasoning, and practical knowledge work tasks.","url":"https://support.claude.com/en/articles/12138966-release-notes"}}],"replaced":[],"faq":[{"question":"What is Claude Opus 4.8's current predecessor?","answer":"Opus 4.7, dated May 28, 2026, from a primary source (support.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"}}}