Widescreen Fello AI article thumbnail with the headline “CHATGPT 5.6 IS LIVE” in bold amber and white text, next to a glowing ChatGPT-style emblem surrounded by three orbital spheres representing Sol, Terra, and Luna on a dark navy tech background.

ChatGPT 5.6 Is Live: Sol, Terra, and Luna Explained

OpenAI began the broad public rollout of GPT-5.6 on July 9, 2026, two weeks after the model first shipped as a locked-down preview to roughly 20 US-government-vetted organizations. The launch comes after the US Commerce Department’s Center for AI Standards and Innovation completed its review and cleared wider access to the three models in the […]