OpenAI has unveiled GPT-5.6, its latest AI model family with Sol, Terra and Luna. The models will roll out gradually across ChatGPT, the API and Codex, with Sol adding Max and Ultra modes for advanced reasoning.

OpenAI launched Sol, its most powerful model, to about 20 partners approved by Washington under Trump's AI executive order. Broad access comes later.

On Friday, the company unveiled the limited preview of its new GPT 5.6 model suite: Sol, Terra, and Luna.

OpenAI unveils GPT-5.6, claiming it surpasses Claude Mythos. Release by July 31, 2026 at 88.9% YES.

ChatGPT maker doesn't want policy to be long-term solution

OpenAI introduces GPT-5.6 to challenge Claude Mythos 5 - SiliconANGLE

Link to: https://openai.com/index/previewing-gpt-5-6-sol/

OpenAI limits access to GPT-5.6 Sol after US government security review, raising debate over AI oversight, cybersecurity risks and innovation.