OpenAI is temporarily relaxing GPT-5.6 Sol usage after demand for the company's most powerful model surged over the past 48 hours.

Yesterday OpenAI shipped the GPT-5.6 family (Sol, Terra, Luna) and folded Codex into a unified...

OpenAI launched GPT-5.6 with Sol, Terra, and Luna tiers, integrated Codex into ChatGPT, and hosted a Reddit AMA as weekly users surpassed 5 million.