Trump’s Ban On Foreign Access To New Anthropic Models Sparks Tech Backlash

The U.S. government imposed an export control directive on Anthropic’s latest AI models, Claude Fable 5 and Mythos 5, prohibiting foreign nationals—including employees—from accessing them, whether inside or outside the U.S. The company confirmed the restriction was issued due to concerns over a potential jailbreaking vulnerability, a method to bypass AI safety guardrails. Anthropic stated the issue involved minor, previously known weaknesses present in other models and that no model provider can guarantee absolute protection against jailbreaks. In response, Anthropic suspended access to both models to comply with the directive, apologizing for the disruption and attributing the decision to a government misunderstanding. The company argued that recalling a widely deployed model over a narrow vulnerability would set a dangerous precedent, potentially halting all new AI deployments if applied broadly. Criticism from tech leaders and former government advisers quickly followed. Dean Ball, a former White House AI adviser under Trump, called the move baffling, questioning why the U.S. would restrict access to its best AI models while still exporting advanced AI chips to China. Chris McGuire, a former State Department adviser, described the universal ban as absurd, arguing it would hinder U.S. competitive efforts and lack practical enforcement. Peter Girnus, a software threat researcher, suggested the ban stemmed from Anthropic’s own marketing, which framed its models as highly powerful and potentially risky. The controversy underscores tensions between national security concerns and the global nature of AI development, with experts warning the restrictions could undermine U.S. leadership in the field. Anthropic and the Commerce Department were contacted for comment but had not responded by publication time. The incident highlights broader debates over how to regulate AI exports without stifling innovation or ceding technological ground to rivals like China.