Anthropic releases Claude Fable and Mythos 5.2 models

Anthropic has launched two updated models: Claude Fable 5.2 and Claude Mythos 5.2. The company says both models handle complex technical tasks more effectively than their 5.1 predecessors, with faster output generation and stronger performance in coding, reasoning and vision tasks.

Mythos 5.2 will initially be available only to vetted organizations, following Anthropic's standard rollout pattern for that product tier. Fable 5.2 appears to have broader availability.