AI for Humans · Friday, July 10, 2026
OpenAI has launched its latest suite of AI models: GPT 5.6 Sol, Terra, and Luna. GPT 5.6 Sol is their new flagship model, available to paid users, while Terra and Luna will be accessible for free. The new models are described as fast, capable, and reliable, with Sol Ultra specifically noted for its performance on agent benchmarks.
“Today, we are releasing our latest and most capable models. GPT 5.6 Sol, Terra, and Luna.”
“This is GPT 5.6 Sol. This is their brand new flagship model. And boy, oh boy, are we excited about it.”
“Sol Ultra is essentially its their kind of pro model. And there's a really fun little slider you can use where it has colors and you can set it all the way and it's like going to 11 and you get the feeling that you were gonna burn through tokens like crazy. But again, that is max thinking at the highest level. That is using all of the tokens you possibly can to do that.”