Earlier this week, Anthropic released its most powerful public model yet: Claude Fable 5. This model is the “safe” version of an even more powerful model, Mythos, that Anthropic has yet to release to the public due to potential dangers.
Just days later, the Trump administration issued an export control directive barring the use of Fable 5 from foreign nationals. As a result, Anthropic was forced to disable Fable 5 for all its customers to comply with the order.
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Anthropic pulls Claude Fable 5, Mythos 5 after Trump admin order
In a statement, Anthropic said it believed the order was issued by the U.S. government to use a method to “jailbreak” Fable 5 to identify vulnerabilities. Anthropic claimed in its statement that other AI models could do the same without a bypass. The company specifically named GPT 5.5, the latest AI model from its biggest competitor, OpenAI, as one such model.
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