Anthropic is sharing access to its most advanced AI model, Mythos, with the EU after the bloc sought permission over cybersecurity concerns.

Anxious cybersecurity pros are watching as Anthropic greatly expands the number of organizations that get access to its Mythos frontier AI model and OpenAI makes similar moves with its GPT-5.5-Cyber.

Under an executive order issued by President Donald Trump, AI companies such as OpenAI and Anthropic are being asked to submit advanced artificial intelligence models to the government for vetting on cybersecurity,

President Donald Trump on Tuesday privately signed a scaled-back executive order that would give AI and tech companies a brief window to let the federal government voluntarily review AI models. The order comes after the federal government has had repeated conversations with leading AI companies,