OpenAI introduces limited preview of 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 everyday work and GPT-5.6 Luna for fast, affordable high-volume tasks.

Impact & opportunity

What this could mean

Developers can explore OpenAI's new model lineup to choose the best fit for diverse application needs, from cutting-edge research to cost-effective production.