regulation

OpenAI has released its latest advanced model, Sol, for public access after government review, but researchers and industry figures say the approval process remains opaque. The model is considered comparable to Anthropic's Fable, which was briefly banned from public access, yet details of how either model received clearance are unclear.

The U.S. Department of Commerce has cleared OpenAI to proceed with a broad release of GPT-5.6, according to an Axios report citing a source familiar with the matter. The White House disputed the claim, telling CNBC it did not give OpenAI "green light, approval or clearance" and that release decisions "rest entirely with the companies."

Anthropic has launched Claude Sonnet 5 and restored access to its Fable and Mythos frontier models after an 18-day operational pause. The suspension began June 12 following a US government export control directive targeting the company's highest-capability systems.

Anthropic announced it will begin restoring access to Claude Fable 5 after the Department of Commerce lifted export controls that had blocked foreign nationals from using the model since early June. The consumer-facing model, built on the same underlying technology as Mythos 5 but with additional safeguards, was sidelined following a Trump administration ultimatum over jailbreak concerns.

OpenAI announced three new models—GPT-5.6 Sol, Terra, and Luna—on June 26, 2026, but is limiting initial access to a "small group of trusted partners" following a U.S. government request. The company says it plans to make the models generally available "in the coming weeks."

OpenAI will release ChatGPT 5.6 first to customers approved by the federal government, according to a staff memo from CEO Sam Altman. The company plans a broader release "a couple of weeks later," marking a significant departure from typical model rollouts.

OpenAI released an updated GPT-5.5-Cyber model that scores 85.6% on CyberGym, surpassing Anthropic's Mythos 5 (83.8%) — the same model that triggered Trump administration export controls. The release proceeds without the political pushback that forced Anthropic to restrict foreign national access.

Microsoft's technical report systematically evaluates methods to distinguish authentic media from AI-generated content and finds none are reliably effective on their own. The findings contradict regulatory assumptions underlying new laws designed to combat deepfakes and synthetic media.