
The U.S. government stopped Anthropic from offering Mythos and Fable 5 models to non-U.S. nationals. This may boost open-source models from Chinese labs like DeepSeek and Moonshot AI, which users can download and run independently. Shares in Chinese lab Knowledge Atlas surged over 30% after releasing open-source model GLM-5.2.
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Summary by ByteBrief
Anthropic disables Fable and Mythos AI models after U.S. ban