ChatGPT 5.6 Tested: Tera, Sol, Luna & Govt. Limited Access
ChatGPT 5.6 is not one model – it’s three: Sol (the flagship), Terra (the balanced daily driver, often typed as “Tera”), and Luna (the fast, cheap tier). I spent the last two weeks testing all three through the API the moment my org got preview access, and the story here isn’t just benchmarks. It’s that…