{"id":"clm_032E0FE3CE1C","entity":"claude-sonnet-5","predicate":"feature_removed","value":"manual extended thinking","value_json":{"feed":"claude-platform-release-notes","item":"https://platform.claude.com/docs/en/release-notes/overview#2026-06-30","tags":{"v":2,"ai":true,"by":"claude-haiku-5-5","on":"2026-11-10","themes":["reasoning"]},"check":{"on":"2026-11-10","url":"https://platform.claude.com/docs/en/release-notes/overview#2026-06-30","pages":1,"quote":"manual extended thinking ( thinking: {type: \"enabled\", budget_tokens: N} ) is removed and returns a 400 error (it was deprecated on Sonnet 4.6)","outcome":"checked"},"evidence":"We’ve launched Claude Sonnet 5 ( claude-sonnet-5 ), the next generation of our Sonnet model family, at introductory pricing of $2 / $10 USD per MTok (made the standard price on August 10, 2026). Claude Sonnet 5 supports a 1M token context window , 128k max output tokens, and the same set of tools an","extracted_by":"claude-haiku-5-5","primary_source":true},"valid_from":"2026-06-30","valid_to":null,"published":"2026-06-30","recorded":"2026-11-10","citation":{"plain":"AsOf. \"Claude Sonnet 5 feature removed: manual extended thinking\", as of 2026-06-30. Claim clm_032E0FE3CE1C, https://asof.is/claim/clm_032E0FE3CE1C, accessed 2026-11-11. Source: https://platform.claude.com/docs/en/release-notes/overview#2026-06-30.","url":"https://asof.is/claim/clm_032E0FE3CE1C","accessed":"2026-11-11"},"confidence":0.7,"status":"valid","assertable":true,"superseded_by":null,"supersedes":[],"first_seen_at":"2026-11-10T10:03:27.125224+00:00","updated_at":"2026-11-10T13:30:45.076368+00:00","sources":[{"url":"https://platform.claude.com/docs/en/release-notes/overview#2026-06-30","tier":"primary","publisher":"Anthropic","published_at":"2026-06-30T00:00:00+00:00"}],"evidence":{"by":"page-read","on":"2026-11-10","quote":"manual extended thinking ( thinking: {type: \"enabled\", budget_tokens: N} ) is removed and returns a 400 error (it was deprecated on Sonnet 4.6)","url":"https://platform.claude.com/docs/en/release-notes/overview#2026-06-30","excerpt":"We’ve launched Claude Sonnet 5 ( claude-sonnet-5 ), the next generation of our Sonnet model family, at introductory pricing of $2 / $10 USD per MTok (made the standard price on August 10, 2026). Claude Sonnet 5 supports a 1M token context window , 128k max output tokens, and the same set of tools an"},"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.","citation":"citation: how to cite the row (plain: one sentence with the value, its as-of date, the claim id and URL, the day answered and the primary source; url: the claim page; accessed: the day answered). APA and BibTeX forms are on the claim page.","why_not":{},"checked_by":{"page-read":"its source page states the value and the date"}}}