Model4h ago
Anthropic Ships Claude Fable 5 and Mythos 5
Claude Fable 5 completed a Stripe code migration in one day, a task previously estimated to take two months. Its sibling, Mythos 5, autonomously designed drug candidates but remains restricted due to offensive cyber risks. These models outperform the Opus generation. Developers gain immediate, massive productivity boosts in complex software engineering and scientific research.