{"id":"clm_056A43D69B83","entity":"claude","predicate":"feature_removed","value":"Fast mode for Claude Opus 4.6","value_json":{"feed":"claude-platform-release-notes","item":"https://platform.claude.com/docs/en/release-notes/overview#2026-06-29","tags":{"v":2,"ai":true,"by":"claude-haiku-5-5","on":"2026-10-31","themes":["developer_platform"]},"check":{"on":"2026-10-31","url":"https://platform.claude.com/docs/en/release-notes/overview#2026-06-29","pages":1,"quote":"June 29, 2026  We’ve removed fast mode for Claude Opus 4.6.","outcome":"checked"},"evidence":"We’ve removed fast mode for Claude Opus 4.6. Requests to claude-opus-4-6 with speed: \"fast\" no longer run at fast speed or premium pricing: they run at standard speed, are billed at standard rates, and do not return an error. The response’s usage.speed field reports the speed used. To continue using","extracted_by":"claude-haiku-5-5","primary_source":true},"valid_from":"2026-06-29","valid_to":null,"published":"2026-06-29","recorded":"2026-10-31","confidence":0.7,"status":"valid","assertable":true,"superseded_by":null,"supersedes":[],"first_seen_at":"2026-10-31T02:13:24.022264+00:00","updated_at":"2026-10-31T03:52:09.939321+00:00","sources":[{"url":"https://platform.claude.com/docs/en/release-notes/overview#2026-06-29","tier":"primary","publisher":"Anthropic","published_at":"2026-06-29T00:00:00+00:00"}],"evidence":{"by":"page-read","on":"2026-10-31","quote":"June 29, 2026  We’ve removed fast mode for Claude Opus 4.6.","url":"https://platform.claude.com/docs/en/release-notes/overview#2026-06-29","excerpt":"We’ve removed fast mode for Claude Opus 4.6. Requests to claude-opus-4-6 with speed: \"fast\" no longer run at fast speed or premium pricing: they run at standard speed, are billed at standard rates, and do not return an error. The response’s usage.speed field reports the speed used. To continue using"},"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"}}}