OpenAI confirmed that GPT-5.6 Sol, Terra, and Luna will launch publicly this Thursday, ending a two-week government-gated preview and opening its most capable model family to developers worldwide. Here is who built it, what changed, when it lands, where it costs what, and why the rollout was restricted in the first place. What Is Launching … Continue reading GPT-5.6 Sol, Terra, and Luna Launch Publicly This Thursday