OpenAI Unveils GPT-5.6 Sol/Terra/Luna & Ultra Mode

altryne · x · 2026-07-03

At the AI Engineer World's Fair, OpenAI engineer Dion Kundel introduced three versions of the GPT-5.6 series—Sol, Terra, and Luna—alongside an ultra-high-performance Ultra mode, a Codex app, and a Token bank mechanism. The presentation also featured a physical reset button, highlighting OpenAI's new strategic layout in model tiering and developer tools.

Related event: GPT-5.6 Variants Revealed, Rumored to Launch by July 7(8 posts)→

Original post →

More from Models

Models channel →