{"id":"clm_0DC1F7EBBD47","entity":"claude","predicate":"default_model","value":"Claude Sonnet 5","value_json":{"note":"Free and Pro plans; Sonnet 5.5 post (Sep 28) does not say it became default, so open-ended. Opus 5 became Max default Jul 24, 2026 (not recorded here: free tier preferred)","check":{"by":"research, quote read on the page","on":"2026-11-04","url":"https://www.anthropic.com/news/claude-sonnet-5","quote":"From today, Claude Sonnet 5 is available across all plans: it is the default model for Free and Pro plans, and is available to Max, Team, and Enterprise users.","outcome":"checked","dated_by":"page"},"value_as":"Claude Sonnet 5"},"valid_from":"2026-06-30","valid_to":null,"published":"2026-06-30","recorded":"2026-11-04","confidence":0.95,"status":"valid","assertable":true,"superseded_by":null,"supersedes":["clm_50F23B443136"],"first_seen_at":"2026-11-04T02:40:06.661518+00:00","updated_at":"2026-11-04T02:40:23.583789+00:00","sources":[{"url":"https://www.anthropic.com/news/claude-sonnet-5","tier":"primary","publisher":"Anthropic","published_at":"2026-06-30T00:00:00+00:00"}],"evidence":{"by":"page-read","on":"2026-11-04","quote":"From today, Claude Sonnet 5 is available across all plans: it is the default model for Free and Pro plans, and is available to Max, Team, and Enterprise users.","url":"https://www.anthropic.com/news/claude-sonnet-5"},"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"}}}