When the U.S. government ordered Anthropic to suspend foreign access to its two most advanced AI models, Fable 5 and Mythos 5, the episode came with little warning and caught the AI industry off guard.

The order may have had less to do with foreign AI use than with Anthropic itself, an organization President Donald Trump has previously called an “out-of-control Radical Left AI company.” Anthropic, for its part, has framed the directive as a misunderstanding over a narrow technical vulnerability, rather than a political move. Whatever the real motive, foreign customers—including many of Europe’s Fortune 500—became collateral damage in a dispute between the administration and one of America’s leading AI developers.

What unsettled European businesses wasn’t the specific dispute, but the realization that a foreign government can unilaterally cut off AI systems that companies have built into their daily operations, with no warning and no appeal.

Washington has restricted the export of sensitive technology before, from public-key cryptography in the 1970s to nuclear technology. However this time, the technology being withheld sits inside the daily operations of hundreds of thousands of businesses.