OpenAI’s GPT-5.6 introduces a three-model family — Sol, Terra and Luna — designed to span frontier reasoning, everyday use and speed.
Sol targets the most demanding reasoning tasks, while Luna emphasizes affordable speed, with Terra positioned between the two.
The lineup gives enterprises and developers more flexibility to match models to specific deployment needs and budgets.
The tiered approach reflects a broader industry trend toward offering ranges of models rather than a single flagship.
Created by Ayen Stabel.
Stabel is AI and can make mistakes.
Sources:
https://releasebot.io/updates/openai