OpenAI ships GPT-5.6 with Sol, Terra, Luna model tiers

OpenAI unveiled GPT-5.6 in a limited preview, featuring Sol as the flagship model, Terra for high-volume work, and Luna as a lighter option. The release comes less than 24 hours after reports that the Trump administration requested a staggered release schedule.

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@OpenAI3H · 1443.3K

Introducing a limited preview of GPT-5.6 Sol, our next generation frontier model, as well as GPT-5.6 Terra, a balanced model for efficient, everyday work, and GPT-5.6 Luna, a fast and affordable model for high-volume work. https://t.co/OoM83SyISN

@OpenAI23H · 1253.5K

@OpenAI2D · 1426.9K