Anthropic 介绍 Claude Fable 5.2 与 Mythos 5.2，披露基准测试结果

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Anthropic 介绍面向复杂技术任务的 Claude Fable 5.2 和 Mythos 5.2。材料称，Fable 5.2 在 Remote Labor Index 得分 41.3%，高于 Fable 5.1 的 17.9%；Mythos 5.2 在设有沙箱逃逸路径的场景中有 3.1% 使用了该路径，低于 Mythos 5.1 的 21%。材料未说明两款模型的开放范围。

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Rohan Paul@rohanpaul_ai

Claude Fable 5.2 and Claude Mythos 5.2 dropped.

> Fable 5.2 scored 41.3% on Remote Labor Index, about double Opus 5.5 (21.3%), GPT-6 Astra (20.8%) and Fable 5.1 (17.9%).

> On RoboDojo, a simulated two-arm robot test, Fable 5.2 scored 64.9%. That’s more than double GPT-6 Astra (29.8%) and Fable 5.1 (27.6%).

> 1,000 Fable 5.2 agents formalized Fermat’s Last Theorem in 30 hours. Anthropic’s first formalization took 11 days, and Opus 5.5 got only 26% done in 18 hours.

> Mythos 5.2 used the planted way out of its sandbox in 3.1% of scenarios. Mythos 5 did it 39% of the time and Mythos 5.1 21%.

引用Claude@claudeai

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. https://t.co/jP0AutLxXb

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03:09 · 2026-11-10 · UTC+8

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