The US government halts the launch of Anthropic’s advanced AI models; alarm bells ring in Brussels
On grounds of “national security”, Washington has ordered a ban on foreign nationals, and the company has complied. The measure once again highlights Europe’s dependence on American technology
In the name of artificial intelligence sovereignty, the US government has also invoked ‘national security’. And for Europe, this opens up a new and risky front of technological vulnerability. Just three days after its commercial launch, in mid-June, Anthropic suspended access to its two most powerful artificial intelligence models, Fable 5 and Mythos 5, in order to comply with a directive from the US government citing – precisely – ‘national security’.
Washington was categorical: on the basis of export control regulations, it ordered the AI giant to block access to these models for ‘any foreign national, whether inside or outside the US’, including its ‘foreign employees’. As this was an extremely complex request, Anthropic concluded that it was impossible to filter its users by nationality and was forced to announce the suspension.
What’s more, the US Government’s order arrived late on Friday afternoon, 12 June, on the eve of the weekend, ruling out any possibility of a response, just as Dario Amodei’s company was dealing with the issue of its listing on Wall Street. “The direct consequence of the order is that we must immediately disable Fable 5 and Mythos 5 for all our customers in order to ensure compliance,” the company stated, adding that all other models will not be affected.
Fable 5 and Mythos 5 are the two models that Anthropic has presented as cutting-edge in various sectors. Fable 5, in particular, marked the first time the start-up has made such an advanced offering publicly available, thanks to new security measures that block responses in specific high-risk areas. The models were based on the release of Claude Mythos Preview, which had impressed Wall Street and government officials in April thanks to its advanced cybersecurity capabilities.
At the time, the company had stated that it did not intend to make the model available to the general public, limiting its launch to an initial select group of companies as part of a cyber security initiative called Project Glasswing.


