U.S. restricts access to advanced AI models as Anthropic shuts down flagship systems

16. 06. 2026 | Natalie Bezděková

Artificial intelligence company Anthropic has been forced to disable access to some of its most advanced AI models following a directive from the U.S. government. The move is part of a broader effort to address national security concerns related to the use of cutting-edge AI technologies by foreign entities.

The restrictions affect Anthropic’s newest AI systems, Fable 5 and Mythos 5. According to reports, U.S. authorities ordered the company to prevent access by foreign governments, businesses, and individuals. Because Anthropic was unable to immediately implement a selective access system, it temporarily suspended the models for all users worldwide.

The decision has attracted significant attention across the technology sector. Unlike previous export controls focused on semiconductors or hardware, this measure directly targets access to advanced AI software. Experts believe the move could mark a turning point in how governments regulate powerful artificial intelligence systems.

Anthropic stated that it was not provided with detailed information about the specific security concerns behind the order. However, the company believes officials may be worried about methods that could bypass the models’ safety protections, potentially enabling cybersecurity-related misuse or other high-risk applications.

The restrictions also impact foreign nationals working within Anthropic itself. Under the current directive, access limitations apply regardless of whether an individual is located inside or outside the United States, affecting both customers and employees.

Meanwhile, the European Commission has begun assessing the consequences for European organizations and businesses that rely on advanced AI tools. Officials have highlighted the situation as another reminder of the importance of developing independent AI capabilities within Europe.

Industry observers warn that the decision could accelerate the global race for AI leadership. As governments and companies seek to reduce dependence on foreign technology providers, investment in domestic AI development is likely to increase. The long-term effects of the U.S. restrictions may therefore extend far beyond Anthropic itself and reshape the future landscape of artificial intelligence worldwide.

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Author of this article

Natalie Bezděková

I am a student of Master's degree in Political Science. I am interested in marketing, especially copywriting and social media. I also focus on political and social events at home and abroad and technological innovations. My free time is filled with sports, reading and a passion for travel.

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