Improving health intelligence in ChatGPT

Short summary

OpenAI's GPT-5.5 Instant shows substantial improvements in health intelligence, now performing at frontier-model levels on challenging health evaluations. The model better recognizes when urgent care is needed, requests relevant context, explains uncertainty, and simplifies complex medical information. With 230 million people using ChatGPT weekly for health questions, these improvements are available to all free users.

• •GPT-5.5 Instant improves health intelligence to frontier-model performance
• •Better at recognizing urgent care needs, explaining uncertainty, and contextualizing information
• •Available free to all users; developed with physician oversight

Generated with AI, which can make mistakes.