{"id":"clm_D102F6FB78D0","entity":"claude","predicate":"price","value":"$10 / $50 per MTok","value_json":{"feed":"claude-platform-release-notes","item":"https://platform.claude.com/docs/en/release-notes/overview#2026-09-01","tags":{"v":2,"ai":true,"by":"claude-haiku-5-5","on":"2026-10-31","themes":["pricing_access","coding"]},"check":{"on":"2026-10-31","url":"https://platform.claude.com/docs/en/release-notes/overview#2026-09-01","pages":1,"quote":"Both models support a 1M token context window by default, 128k max output tokens, and always-on adaptive thinking , at $10 / $50 USD per MTok, the same as Claude Fable 5, with cache reads cut to $0.25 USD per MTok.","outcome":"checked"},"evidence":"We’ve launched Claude Fable 5.1 ( claude-fable-5-1 ), the successor to Claude Fable 5 for long-running agentic coding, knowledge work, and research, alongside Claude Mythos 5.1 ( claude-mythos-5-1 ) for Project Glasswing participants. Both models support a 1M token context window by default, 128k ma","extracted_by":"claude-haiku-5-5","primary_source":true},"valid_from":"2026-09-01","valid_to":"2026-09-22","published":"2026-09-01","recorded":"2026-10-31","confidence":0.7,"status":"superseded","assertable":true,"superseded_by":"clm_CD4401C7109B","supersedes":[],"first_seen_at":"2026-10-31T02:13:24.022264+00:00","updated_at":"2026-10-31T12:15:45.967413+00:00","sources":[{"url":"https://platform.claude.com/docs/en/release-notes/overview#2026-09-01","tier":"primary","publisher":"Anthropic","published_at":"2026-09-01T00:00:00+00:00"}],"evidence":{"by":"page-read","on":"2026-10-31","quote":"Both models support a 1M token context window by default, 128k max output tokens, and always-on adaptive thinking , at $10 / $50 USD per MTok, the same as Claude Fable 5, with cache reads cut to $0.25 USD per MTok.","url":"https://platform.claude.com/docs/en/release-notes/overview#2026-09-01","excerpt":"We’ve launched Claude Fable 5.1 ( claude-fable-5-1 ), the successor to Claude Fable 5 for long-running agentic coding, knowledge work, and research, alongside Claude Mythos 5.1 ( claude-mythos-5-1 ) for Project Glasswing participants. Both models support a 1M token context window by default, 128k ma"},"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"}}}