Anthropic’s Mythos is moving between governments faster than regulators can agree on what to do with it

Anthropic’s most controversial product has spent its first three weeks moving between state actors who cannot agree on whether it is theirs to use, theirs to block, or someone else’s problem entirely.

On Wednesday morning, an unnamed Trump administration official told the Wall Street Journal that the White House opposed Anthropic’s plan to expand access to Mythos, its advanced cybersecurity model, from roughly 50 organisations to 120.

The reason given was twofold: a security concern about misuse, and an operational concern that Anthropic does not have enough computing power to serve more users without degrading the access already extended to the federal government, including the National Security Agency.

The same White House was simultaneously developing an executive action that would let federal agencies work around the Pentagon’s supply chain risk designation of Anthropic and onboard the same model.

Susie Wiles and Scott Bessent had met Dario ...