US partially lifts ban on Anthropic's AI model Mythos 5

The US government has permitted Anthropic to distribute its Claude Mythos 5 AI model to more than 100 'trusted' organizations in the US, including numerous Fortune 500 firms, partially lifting a ban that was enacted two weeks prior due to national security concerns. This initial prohibition stemmed from apprehensions that advanced AI technologies could facilitate cyberattacks by military intelligence from nations like China and Russia. The Trump administration has adopted a stringent oversight strategy regarding cutting-edge models from both Anthropic and OpenAI. In a related matter, OpenAI has postponed the complete public release of GPT-5.6 at the request of the US government, restricting access to a select group of approved partners whose identities were disclosed to authorities.