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13 June 2026

US restricts access to Anthropic’s advanced AI models over national security concerns

Anthropic has disabled access to its most powerful AI models after the US government issued a directive restricting their use by foreign nationals.

US restricts access to Anthropic's advanced AI models over national security concerns

The tech world is abuzz with the recent decision by Anthropic to disable access to its Fable 5 and Mythos 5 AI models. This move comes in response to a directive from the Trump administrationwhich cited national security concerns as the primary reason for the restriction.

The directive, issued on Friday, requires Anthropic to suspend all access to these models by foreign nationalsincluding the company’s own employees. This unprecedented action has sparked a wave of discussions about the future of AI and its role in global security.

Understanding the government’s concerns

The US government’s decision to restrict access to these AI models is rooted in concerns about their potential misuse. The Fable 5 model, in particular, has been praised for its advanced capabilities, including its ability to identify software vulnerabilities. However, this very strength has raised alarms about its potential use in cyberattacks.

Anthropic acknowledged the risks associated with releasing such a powerful model. In a statement released on June 9, the company mentioned that it had introduced safeguards to block the model’s use for certain topics. Despite these measures, the US government claims that a jailbreak exists, allowing users to bypass these safeguards.

The impact on Anthropic and the tech industry

The timing of this directive could not be worse for Anthropic, which was reportedly preparing for an initial public offering (IPO) in the US. The disruption caused by this restriction could have significant implications for the company’s valuation and investor confidence.

This is not the first time Anthropic has clashed with the Trump administration. Earlier this year, the company refused to allow the US military to use its AI models for fully autonomous weapons systems. This decision led to the Pentagon placing Anthropic on a blacklistdeeming it too dangerous for government use. With these latest export controls, the company has now also been deemed too dangerous for foreign use.

The global debate on AI sovereignty

The US government’s decision has sparked a debate about AI sovereignty—the ability of a nation to control its own artificial intelligence technology. British lawmaker Kanishka Narayanminister for AI and Online Safety, suggested that the ban should encourage deeper investment in his country’s own AI industry.

However, experts like Anton Leichta fellow with the Technology and International Affairs Program at the Carnegie Endowment for International Peace, argue that the debate over AI sovereignty misses the broader point. He believes that only the US builds frontier models and controls almost all the chips needed to train them, making it unlikely for other countries to catch up in the short term.

The future of AI and national security

The US government’s decision to restrict access to these AI models is a clear indication of its growing concern about the potential misuse of advanced AI technology. As the tech industry continues to evolve, it is likely that we will see more such actions aimed at protecting national security.

For now, Anthropic is working to restore access to its models as soon as possible. The company has apologized for the disruption to its customers and expressed its disagreement with the government’s decision. However, the long-term implications of this directive remain to be seen.

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Florence Wright

Florence Wright, Glasgow native with an editorial-minimal aesthetic, rerouted a social feed to live-cover a Pollok Park remembrance event, prioritising human detail over algorithmic reach. Promotes clarity, humane framing and local resonance; keeps an archive of Polaroids from neighbourhood gatherings as a personal emblem.