Anthropic unveils Claude Fable 5.1, which is generally available, and Mythos 5.1, for trusted partners and with cybersecurity and life sciences safeguards (Anthropic)

Anthropic has introduced Claude Fable 5.1, now generally available, and Claude Mythos 5.1, which is offered to trusted partners. These models are described as the world's most advanced for coding and knowledge work. Mythos 5.1 includes specific safeguards for cybersecurity and life sciences, indicating a focus on specialized applications for its partner-exclusive release.