Anthropic cuts access to powerful AI models over government ‘national security’ order

The Anthropic logo and a rising stock graph in this illustration, taken June 11, 2026. (Reuters/Dado Ruvic/Illustration)
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Updated 47 min 38 sec ago
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Anthropic cuts access to powerful AI models over government ‘national security’ order

  • Anthropic says government has banned all foreign nationals from accessing Fable 5 and Mythos 5
  • The ​US Defense Department in March ​labeled the company a “supply-chain risk”

SAN FRANCISCO, United States: Anthropic said Friday it has suspended access to two powerful AI models to comply with a US national security order.

Just three days after publicly launching Fable 5, the company said in a blog post that it received a government directive banning all foreign nationals, even ones who work at Anthropic, from accessing Fable 5 and Mythos 5 over national security concerns.
“The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance,” it said.

Earlier on Friday, Axios reported that the Trump administration was blocking foreign governments, companies and ​individuals from accessing Anthropic’s most advanced AI models.

US Commerce Secretary Howard Lutnick on Friday sent a letter to Anthropic CEO Dario Amodei saying that the Mythos 5 and Fable ‌5 models ‌would be subject ​to ‌export ⁠controls ​to any location ⁠outside of the US and to all foreign persons within the country, the report said.

The Commerce ‌Department took action after another ‌company claimed it was able to jailbreak Mythos, Axios reported, citing an administration official.
Trump signed an executive order early ‌this month asking leading AI developers to voluntarily submit their most ⁠capable models ⁠for government cybersecurity tests before releasing them to the public.
A months-long dispute between Trump administration officials and Anthropic had been showing signs of easing across parts of the US government as the company prepares to go public, Reuters reported earlier in June. The ​Defense Department in March ​labeled the company a “supply-chain risk.”