OpenAI and Anthropic have limited access to their latest artificial intelligence models following cybersecurity reviews by the administration of US President Donald Trump, reflecting increased government scrutiny of advanced AI systems.
OpenAI said on Friday that its new model, GPT-5.6 Sol, will initially be available only to a small group of customers approved by the Trump administration. The company described the move as temporary, saying it expects broader public access in the coming weeks.
Hours later, Anthropic announced that the administration had approved a limited release of its Mythos 5 cybersecurity model, two weeks after the Commerce Department restricted its deployment. The company said the model would initially be available only to selected cyber defenders and infrastructure providers.
The White House said it is working with leading AI developers to address national security risks posed by increasingly powerful AI technologies. Earlier this month, Trump signed an executive order creating a framework for reviewing advanced AI systems for up to 30 days before public release.
The policy has drawn criticism from lawmakers and cybersecurity experts, who warned that government control over AI releases could hurt US innovation and competitiveness. Both OpenAI and Anthropic are also exploring public stock market listings as regulatory oversight of the sector continues to expand.
