New Claude models solve physics problems and design electronics
Anthropic announced Fable 5.2 and Mythos 5.2: the models respond up to 30% faster than their predecessors and outperform Opus 5.5 in most of the developer's tests.
Among the reported results: solving two open problems in black hole physics, designing three working electronic devices, and formalizing a proof of Fermat's Last Theorem in 30 hours.
Fable is available to everyone within plan limits, while Mythos is available only to verified organizations: it has fewer restrictions in cybersecurity and biology.