OpenAI said it is restricting the release of its new AI model, called GPT-5.6 Sol, at the request of President Donald Trump’s administration, making it accessible only to customers approved by the Trump administration. Its rival, Anthropic, announced hours later that the Trump administration has approved a limited release of its strongest cybersecurity model, Mythos 5, two weeks after the US Commerce Department effectively banned it. Both companies said their newest models would be available to small groups of trusted partners. OpenAI stated it viewed the testing period as a temporary step on the “path to broader availability in the coming weeks.” Anthropic had taken offline two new AI models, Fable 5 and Mythos 5, to comply with a Trump directive blocking their use by foreign nationals. The government lifted restrictions on Mythos 5, enabling it to be “redeployed to a small group of cyber defenders and infrastructure providers.” Trump earlier in June signed an executive order on AI oversight that established a framework for the federal government to vet national security risks of advanced AI systems for up to 30 days before public release.