The U.S. government’s enforcement letter to Anthropic, which effectively forced the company to take its latest AI models offline just before the weekend, should serve as a stark warning for any American tech company—AI lab or otherwise. To bring you up to speed on the news: On Friday afternoon, the U.S. Commerce Department sent Anthropic a letter citing an obscure export control directive that banned non-Americans, including Anthropic’s own employees, from accessing Fable 5 and Mythos 5, referencing an unspecified national security concern. Anthropic has stated it believes the letter relates to a bypass of the model’s guardrails, but it’s uncertain because the letter lacks specific details. The letter has not been made public. In response, Anthropic shut down both of its top models for all customers to ensure compliance with the directive. The result was that the U.S. government successfully compelled a tech company to remove its models from operation through a swift, unilateral action that appeared to bypass court approval. Friday’s intervention by the Trump administration demonstrates that the AI industry is not exempt from government interference. It also sends a warning to the broader tech sector: comply, or we can shut you and your products down.

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Citing sources, Axios described a tense situation over the weekend between the two major players, suggesting that “personality differences” between Anthropic and the Trump administration, rather than a technical issue with the AI products, led to the export directive. New details that emerged over the weekend now cast further doubt on the government’s already questionable reasoning. Katie Moussouris, a cybersecurity veteran and researcher who founded Luta Security, wrote in a blog post that Anthropic recently shared with her a private copy of a paper by security researchers describing an alleged guardrail bypass in Fable 5. (The Wall Street Journal reports that the paper’s authors are security researchers at Amazon.) Moussouris noted that Anthropic reached out to ask for her perspective on the paper. Her blog post detailed how the researchers triggered the guardrail bypass but argued that the bypass itself “should never have triggered an export control.” The key difference lies in asking an AI model to “review code for security issues” versus asking it to “fix this code.” The end result is largely the same, even if the questions are phrased slightly differently. “The behavior described in the paper cannot meaningfully be fixed, and any attempt would only weaken the model for defense,” said Moussouris, who criticized the export control directive as hasty, heavy-handed, and misguided. Moussouris and dozens of other top security researchers and experts have since called on the Trump administration to revoke the export control order, labeling the move to remove advanced cybersecurity capabilities from U.S. network defenders as “dangerous.”

Past administrations have made sweeping decisions based on knowledge gaps. For example, language used by the U.S. government during the 2010s to update export laws covering cybersecurity tools that could also be used for cyberattacks was so broad that it inadvertently nearly outlawed legitimate security and vulnerability research. However, the Trump administration’s directive appears retaliatory. Justin Hendrix, the editor of Tech Policy Press, stated that the Trump administration’s move is “likely to raise alarms in foreign capitals about the reliability of American AI for critical applications.” The message is that AI companies in the United States cannot be trusted to operate without interference from the U.S. government.

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The Trump administration has not confirmed why it invoked its export control directive. Did officials misread the report and overreact? Did Amazon CEO Andy Jassy say something to senior government officials that prompted the reaction, out of caution or spite? Was something lost in translation, or was this a way to pressure Anthropic, with whom the administration already has a fractious relationship? It’s possible that the White House was unaware of the far-reaching consequences of the letter’s demand and that officials are now scrambling to undo the damage of their own making. To quote Hendrix, “the climate is one of a cloud of suspicion that senior officials are picking favorites based on personal and political factors.” The aftermath is that the government has set a dangerous precedent about how much control it intends to wield over the release of American-made software. This time the government targeted Anthropic; tomorrow it could be anyone else.