Anthropic has halted access to its Mythos and Fable 5 models for all customers worldwide following U.S. government actions to restrict foreign access due to national security concerns. The Trump administration implemented export controls on these advanced AI models, which has prompted Anthropic to comply by blocking access for non-U.S. nationals. This decision is part of a broader trend where AI developers are modifying their global access policies to align with new regulatory requirements.

Mythos 5: Mythos 5 encompasses AI models created by Anthropic that are now subject to U.S. export controls. These restrictions have resulted in the shutdown of access for customers globally.
Anthropic: Anthropic is an AI company focused on developing advanced language models and AI systems. It has complied with directives from U.S. authorities by restricting worldwide access to its Mythos models after export controls were imposed.
Claude Fable 5: Claude Fable 5 is an AI model developed by Anthropic. U.S. officials attempted to block its release ahead of implementing broader export controls on related systems.
U.S. Government: The U.S. Government manages export regulations on sensitive technologies to address national security priorities. Under the Trump administration, it has applied these controls to specific Anthropic AI models, limiting foreign access.

Export Controls: The Trump administration has expanded the use of export controls on advanced U.S.-developed AI models to address national security concerns.
Industry Response: AI developers are adjusting global access policies in response to new regulatory requirements on model distribution.