U.S. gov't orders Anthropic to disable its newest AI models worldwide due to security threats — ban on Claude Fable 5 and Mythos 5 bars access by any foreign national, even its own employees

Anthropic disabled its two most capable AI models, Claude Fable 5 and Claude Mythos 5, for every customer worldwide on Friday.
Amidst escalating geopolitical tensions and growing concerns over AI safety and control, the U.S. government is asserting its authority over advanced AI models, viewing them as critical national security assets.
This action marks a decisive move by a national government to unilaterally control access to leading-edge AI capabilities worldwide, fundamentally altering the global landscape of AI development and deployment.
The previous assumption of open access to frontier AI models is now fundamentally challenged, with national security interests clearly taking precedence over corporate sovereignty and global availability.
- · US intelligence agencies
- · Onshore US AI developers (for government contracts)
- · Governments with their own AI development capabilities
- · Anthropic (revenue, talent)
- · Non-US AI researchers and developers
- · Global AI collaboration
- · AI model global commercialization
Anthropic faces immediate financial and reputational damage due to the ban, impacting its global customer base and R&D efforts.
Other US-based AI companies will likely face similar or pre-emptive controls and greater scrutiny, leading to a balkanization of AI development and access.
This could accelerate the sovereign AI race, pushing nations to develop their own uncontrolled, domestic frontier models, potentially leading to a more fragmented and dangerous global AI ecosystem.
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Read at Tom's Hardware