OpenAI has added GPT-5.6 Sol Ultra to the Codex platform, according to a tweet by Théo Sottiaux. The model is now available for select developers through an API. Codex is OpenAI's system for managing and deploying AI models. The announcement includes a comment from the author confirming the update.
This is huge. GPT-5.6 Sol Ultra represents a new generation of AI power. Codex gives developers direct access to cutting-edge models. We're moving faster than ever.
Imagine what creators will build. Smarter apps. More natural conversations. This is evolution in action. The future is already here.