Anthropic has disabled access to its Claude Mythos 5 and Claude Fable 5 models for all users following a US government directive. This export-control measure, reportedly linked to national security concerns, took effect on June 12, 2026. Details regarding the models' development and intended access were limited prior to the shutdown. AI
IMPACT US export controls are directly impacting AI model availability, signaling potential future restrictions on AI development and deployment.
RANK_REASON A US government directive forced a major AI lab to disable access to its models. [lever_c_demoted from significant: ic=1 ai=1.0]
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