OpenAI has released an update to GPT-5.6 Sol, focusing on making ChatGPT more useful for everyday work. Key improvements include: - More focused answers with less unnecessary formatting and detail. - More reliable facts, especially for questions involving dates, numbers, sources, and assumptions. - More consistent responses across quick answers and deeper reasoning. - New thinking controls for Plus and Pro users, allowing users to choose how much thought ChatGPT puts into a response. - Expanded access for Free users, with GPT-5.6 Luna becoming the default model and a new Think option for harder questions. The goal is to make ChatGPT more useful across everyday questions as well as complex tasks like research, planning, writing, and decision-making.