OpenAI previews GPT-5.6 Sol (frontier), Terra (balanced), and Luna (fast/affordable) models

Core summary

One sentence to understand this update

OpenAI has launched a limited preview of its next-generation frontier model, GPT-5.6 Sol, alongside GPT-5.6 Terra for balanced efficiency and GPT-5.6 Luna for speed and affordability.

Impact & opportunity

What this could mean

Developers can explore these new models to build more powerful, efficient, or cost-effective AI applications tailored to specific performance and budget needs.