First things first: Claude Fable 5 is the new best publicly available model.

Today we’re launching Claude Fable 5: a Mythos-class model that we’ve made safe for general use.

Until today, Anthropic's Mythos-class models were restricted to a small group of cyberdefenders and...

Anthropic unveils Claude Fable 5, a powerful, safe Mythos-class AI model designed for diverse applications and enhanced performance.