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Beyond the Kill Switch: Why Model Independence is an Engineering Discipline
On June 12, 2026, three days after launch, Anthropic disabled global access to Claude Fable 5 and Mythos 5. This was in response to a US government export-control directive barring foreign nationals, including Anthropic's own employees, from using either model. Since there was no path to comply selectively, Anthropic pulled the models for everyone.
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