GPT-5.6 Sol: OpenAI's Government-Gated Preview (2026)
June 29, 2026
OpenAI previewed GPT-5.6 Sol, Terra, and Luna on June 26, 2026 — but only to government-vetted partners, via API and Codex, under the cyber EO 14409.
OpenAI previewed GPT-5.6 Sol, Terra, and Luna on June 26, 2026 — but only to government-vetted partners, via API and Codex, under the cyber EO 14409.