OpenAI cuts free users from GPT-5.6 Sol to the weaker Luna model
openai improved gpt-5.6 sol for paid users and restricted free users to the weaker gpt-5.6 luna model. this limits free access to openai's most powerful reasoning capabilities.
openai enhanced gpt-5.6 sol with direct answers and a 68% reduction in factual errors compared to gpt-5.5 instant. paid subscribers now control response depth via a slider to toggle between quick answers and deep reasoning. conversely, free users will be downgraded to gpt-5.6 luna, losing access to the more powerful sol model despite receiving unlimited text chats. this move prioritizes conversion, forcing users who need reliable reasoning to pay.