{"entity":"claude-opus-4-8","name":"Claude Opus 4.8","events":[{"date":"2026-05-28","until":null,"published":null,"recorded":"2026-11-04","predicate":"model_release","value":"Claude Opus 4.8","status":"valid","assertable":true,"id":"clm_8BE1B4110AE7","evidence":{"by":"page-read","on":"2026-11-04","quote":"May 28, 2026 We’ve launched Claude Opus 4.8 ( claude-opus-4-8 ), our most capable model.","url":"https://platform.claude.com/docs/en/release-notes/overview"}},{"date":"2026-05-28","until":null,"published":"2026-05-28","recorded":"2026-11-04","predicate":"price","value":"$5 per million input tokens","status":"valid","assertable":true,"id":"clm_CDD220064EB1","evidence":{"by":"page-read","on":"2026-11-04","quote":"Pricing for regular usage is unchanged from Opus 4.7: $5 per million input tokens and $25 per million output tokens.","url":"https://www.anthropic.com/news/claude-opus-4-8"}},{"date":"2026-05-28","until":null,"published":null,"recorded":"2026-11-04","predicate":"predecessor","value":"Opus 4.7","status":"valid","assertable":true,"id":"clm_E91575B30B2E","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"}}],"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"}}}