ChatGPT's health and wellness responses have been improved through the introduction of GPT-5.5 Instant. This update enhances the model's ability to reason, understand context, and communicate clearly on healthcare-related topics. The changes were informed by physician input, which is intended to make the model's responses more accurate and trustworthy. --- Why it matters: This matters because it shows how AI models can be improved through targeted updates, leading to better performance in specific areas like health intelligence. Engineers working on conversational AI systems may study this update as an example of how to refine their own models' abilities. Source: https://openai.com/index/improving-health-intelligence-in-chatgpt