OpenAI is staging GPT-5.6 (Sol, Terra, Luna) behind a government-coordinated limited preview.

All three will hit a small group of trusted partners first, following coordination with the U.S. government, before broader GA (Build Fast with AI). Under OpenAI's Preparedness Framework, all three are classified High capability in both Cybersecurity and Biological/Chemical risk, with tailored safeguards per model. The real story is the gating. Frontier releases are now bottlenecked by national-security review, not just product readiness. That's a structural reason your launch-date planning should treat Q3 as soft, and it ties directly into the June-to-July slippage in story 3.