25launches

The first launch of Claude Fable 5.2.

Claude Fable 5.2 page

Claude Fable 5.2

Launching today

Anthropic's model for hard coding and research work

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Claude Fable 5.2 is Anthropic's model for long, open-ended technical work: large coding projects, research, hardware design and coordinating teams of agents. Anthropic reports gains over Fable 5.1 in coding, reasoning and vision, output up to 30% faster, and fewer false blocks from its cyber and biology safeguards, which still block most security tasks. In Claude on Pro, Max, Team and Enterprise, and via the API, AWS, Google Cloud and Azure at $8/$40 per million tokens.

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Meet the team

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  • Claude Fable 5.2 screenshot 1
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Discussion 1

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  • IlyasHunter Pinned

    Fable 5.2 is aimed at the long jobs: big codebases, research, and coordinating several agents at once, with output up to 30% faster than Fable 5.1. The part I find most interesting is hardware, where it designed three circuit boards with Diode that worked without electrical changes. Anthropic still recommends Opus 5.5 as the daily driver, so this is a model for the hard problems, not every prompt.