Claude Fable 5: a Mythos-class1 model

¿Qué es Claude Fable 5: a Mythos-class1 model?

Claude Fable 5 is Anthropic's first Mythos-class model available to the public. Instead of refusing risky queries, it routes them to Opus 4.8 through safety classifiers, triggering in less than 5% of sessions. Stripe used it to migrate 50M lines of Ruby in a day. API: claude-fable-5 at $10/M input, $50/M output. Free on Pro/Max/Team plans through June 22.