Silicon Valley executives and global policymakers are scratching their heads at US President Donald Trump's latest crackdown on Anthropic, the artificial intelligence (AI) company behind the powerful Claude models.

Just days after the release of its most powerful upgrades — Claude Fable 5 and the even more powerful Mythos 5 — the Trump administration imposed strict export controls on Anthropic's tools on June 12.

Washington cited national security risks from so-called jailbreaking — clever prompts that bypass AI safety rules — which the San Francisco-based tech giant said were minor, overblown and also present in rival AI platforms.

Yet with the US Commerce Department effectively banning foreign nationals worldwide from using the models, including Anthropic's own staff, the firm had little choice but to suspend global access entirely.

Washington's move came days after Anthropic filed plans for a public listing, likely this fall, hoping to raise tens of billions from investors.