Introducing Claude Fable 5.2 and Claude Mythos 5.2, designed to tackle the most daunting technical challenges.
They’re capable collaborators on ambitious projects in many fields, and show improvements in areas like coding, reasoning, and vision.
Anthropic released Claude Fable 5.2 and Claude Mythos 5.2, with gains in coding, reasoning and vision. Engineers building on Claude should re-evaluate which model fits their workloads.
Terms in this piece · Glossary
benchmark — A standard public test set for comparing AI models — the shared scoreboards behind every "model X beats model Y" claim.
