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Anthropic shuts down Fable, Mythos models following Trump admin directive

ai

According to Ars Technica, Anthropic has shut down its Fable and Mythos models in response to a Trump administration directive. The Commerce Department flagged national security concerns regarding a potential jailbreak vulnerability in Fable 5. The intervention marks an unusual instance of government action directly prompting a major AI lab to pull commercial models from service.

Source: https://arstechnica.com/ai/2026/06/anthropic-shuts-down-f...

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