ChatGPT Update: GPT-5.6 Sol Improves Accuracy & Depth

OpenAI has released an update to ChatGPT, integrating an improved version of GPT-5.6 Sol. This update removes all restrictions on text-based conversations. The new GPT-5.6 Sol is specially tuned for everyday conversations in ChatGPT. It aims to generate more accurate responses and adjust the level of detail for each question. The update also removes unnecessary formatting elements. For users, this means more direct answers to short questions and detailed responses for complex tasks like multi-step planning or content writing. Plus and Pro subscribers will now find that both Instant and Thinking modes are powered by GPT-5.6 Sol. A new dedicated slider allows users to adjust the depth of analysis. This slider is available across all ChatGPT apps for web, mobile, and PCs. It lets users choose between a low level for simple questions or a higher level for more complex tasks like analytics, coding, or decision-making. The new GPT-5.6 Sol produced 68% fewer responses with factual errors than the previous GPT-5.5 Instant in evaluations covering finance, medicine, and law. This matters because it promises a more reliable and accurate conversational AI experience for users.