SMRTR AIJun 28, 2026Thurrott.com

OpenAI Launches “Next-Gen” GPT‑5.6 Models in Limited Preview

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OpenAI released three new AI models — GPT-5.6 Sol, Terra, and Luna — in a limited preview at the U.S. government's request. Sol leads in cybersecurity performance, Terra cuts costs in half, and Luna is the most affordable. OpenAI disagrees with the restricted rollout but plans full public access within weeks.

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