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Anthropic has suspended global access to its advanced AI models, Fable 5 and Mythos 5, following a directive from the United States that barred foreigners from using these systems. The company stated on Friday that it cannot effectively filter users in real-time, necessitating a complete shutdown of access. Reports suggest that discussions with Amazon's CEO may have influenced this directive. Cybersecurity experts have subsequently called for the ban to be reconsidered, highlighting potential implications for AI development and accessibility. This action by Anthropic underscores the complex geopolitical and security considerations surrounding the deployment of powerful AI technologies. The directive specifically targets the use of these models by non-US persons, indicating a focus on national security and intellectual property concerns. The inability to implement granular, real-time user filtering presents a significant technical challenge for AI providers operating on a global scale, forcing broad access restrictions to comply with regulatory mandates. The situation highlights the evolving landscape of AI governance and the challenges of balancing innovation with security imperatives.