{"entity":"claude-sonnet-5-5","name":"Claude Sonnet 5.5","events":[{"date":"2026-09-28","until":null,"published":"2026-09-28","recorded":"2026-11-04","predicate":"price","value":"$2 per million input tokens","status":"valid","assertable":true,"id":"clm_513F0F179518","evidence":{"by":"page-read","on":"2026-11-04","quote":"Sonnet 5.5 is priced the same as Sonnet 5 at $2 per million input tokens and $10 per million output tokens, but it typically needs far fewer tokens to do the same work.","url":"https://www.anthropic.com/news/claude-sonnet-5-5"}},{"date":"2026-09-28","until":null,"published":null,"recorded":"2026-11-04","predicate":"model_release","value":"Claude Sonnet 5.5","status":"valid","assertable":true,"id":"clm_B2E11E4198B9","evidence":{"by":"page-read","on":"2026-11-04","quote":"September 28, 2026 We’ve launched Claude Sonnet 5.5 ( claude-sonnet-5-5 ).","url":"https://platform.claude.com/docs/en/release-notes/overview"}},{"date":"2026-09-28","until":null,"published":"2026-09-28","recorded":"2026-11-04","predicate":"predecessor","value":"Claude Sonnet 5","status":"valid","assertable":true,"id":"clm_BEF063B946C7","evidence":{"by":"page-read","on":"2026-11-04","quote":"It’s a clear upgrade over Claude Sonnet 5, runs 30%+ faster, and costs up to 30% less for most work.","url":"https://www.anthropic.com/news/claude-sonnet-5-5"}}],"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"}}}