OpenAI Staggers GPT-5.6 Release at Government Request, Limiting Access to ~20 Trusted Partners

On June 26–27, 2026, OpenAI announced it would release its latest model family, GPT-5.6, in stages at the request of the US government, beginning with a small group of trusted partners (reported to be about 20). Citing cybersecurity concerns, Sam Altman reportedly told staff that the government initially asked for a limited preview. During the preview period, access is approved "customer by customer," with a broader general release expected "a couple of weeks later" if the process goes well.