Master the newly released GPT-5.6 family: Luna, Terra, and Sol. Optimize for speed, cost, and flagship multimodal reasoning. Part of the free OpenAI Academy — every lesson below is open to everyone, no signup required.
A New Tiering System Released on July 9, 2026, the GPT-5.6 family introduces a refined model tiering strategy designed to maximize performance per dol...
Flagship Capability: Sol Sol is the apex of the GPT-5.6 family. Beyond standard text and omni-modal inputs, Sol introduces the Ultra setting for extre...