OpenAI previewed GPT-5.6 (Sol, Terra, Luna) on June 26. It went public July 9. Between those dates, the Office of the National Cyber Director and OSTP requested a hold under Trump's June 2 executive order. CAISI ran additional testing. Sam Altman said OpenAI made "many changes," while saying such restrictions "shouldn't be the norm."
The release sequence gives operators a concrete planning signal. Frontier launches can now include federal review time between preview and public availability, even when the framework is labeled voluntary.
TechTimes described the hold as a White House gate test. The calendar gives operators the planning input: roughly 12 days from preview to release, with government testing in the middle.
| Date | Event |
|---|---|
| June 2, 2026 | Trump EO signed; 60-day clock starts |
| June 26 | GPT-5.6 preview; rollout limited after government request |
| ~July 8 | 12–13 day hold, CAISI testing |
| July 9 | Public release |
| Aug 1 | NSA deadline to define "covered frontier models" |
August 1 is the next date to watch. The EO gives NSA 60 days to finalize which models count as "covered frontier" and to set formal pre-release rules. Once that definition lands, the GPT-5.6 sequence becomes a template labs and customers can plan around.
For teams building on frontier APIs, public availability may carry a variable federal review window between internal readiness and launch. Twelve days this round. Future rounds depend on the model-scope definition and the agency process attached to it.
Watch the NSA definition near August 1. Its thresholds and capability tests will show which releases enter the review lane.
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