The US government has authorized Anthropic to deploy its advanced AI model, Claude Mythos 5, for use by certain trusted organizations within the country. The decision partially lifts a previous suspension imposed two weeks earlier over national security concerns. More than 100 companies, including several Fortune 500 firms, will now gain access to the model. The approval follows a June 12 export control order that had halted the use of Anthropic’s Mythos 5 and Fable 5 models.

The move comes amid heightened government scrutiny of frontier AI systems from Anthropic and OpenAI, driven by fears that foreign intelligence services could misuse such technologies. On the same day, OpenAI announced it was delaying the public release of its GPT‑5.6 model at the government’s request. Critics have questioned the transparency of the government’s selection process for approved companies, while officials cited progress in risk mitigation efforts.

Analysts described the decision as a practical interim step but noted that broader questions remain about when and how these advanced AI models will be made widely available to the public.