Anthropic launches Claude Fable 5.2 and Mythos 5.2 with coding, reasoning and vision gains

claudeai · x · 2026-11-10

Anthropic officially introduces Claude Fable 5.2 and Claude Mythos 5.2, flagship models designed to tackle the most daunting technical challenges, with improvements in coding, reasoning, and vision.

The company describes them as capable collaborators on ambitious projects across many fields; prerelease testing included otherwise-infeasible software migrations and designing working electronic devices from scratch.

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