Subvolts take OpenAI's health AI is already performing at doctor level and reaching millions. Feb 25, 2026 - Developers
- Learn about the rigorous evaluation and real-world deployment of advanced AI models in a sensitive domain like healthcare.
- Business
- Understand how AI is being integrated into critical services, focusing on safety, performance, and broad user adoption.
- Everyday users
- Discover how AI is advancing healthcare, potentially leading to more personalized and accessible medical intelligence for everyone.
This interview provides a detailed look at OpenAI's significant progress and real-world application of AI in the critical field of healthcare.
Universal Medical Intelligence: OpenAI's Plan to Elevate Human Health, with Karan Singhal
Audio streams from Erik Torenberg, Nathan Labenz. Your place is remembered on this device.
From Subvolts
Summary and analysis by Subvolts editorial, AI-assisted.
Karan Singhal, OpenAI's Head of Health AI, discusses ChatGPT Health's physician-level performance and its use by hundreds of millions. The episode covers OpenAI's collaboration with doctors, its HealthBench evaluation, and a clinical trial of AI copilots. It also explores privacy, medical multimodality, personalized treatments, and AI's future in global healthcare.
OpenAI is building AI that acts like a doctor, already helping millions. They worked with many doctors and tested it in real hospitals to make sure it's safe and effective for improving global health.
This episode offers insight into OpenAI's ambitious health AI initiatives, including real-world deployment and rigorous evaluation. It's for anyone interested in AI's practical impact on healthcare, from researchers to medical professionals and the general public. The discussion highlights how frontier labs like OpenAI are moving beyond research to integrate AI into critical sectors, addressing both potential and challenges.
- HostNathan Labenz
- GuestKaran SinghalHead of Health AI, OpenAI
- Guest: Karan Singhal, Head of Health AI at OpenAI
- Episode Title: Universal Medical Intelligence: OpenAI's Plan to Elevate Human Health
- Show: The Cognitive Revolution
- Length: 121 minutes
- AI Performance: Attending-physician-level performance for ChatGPT Health
- User Base: Hundreds of millions of users for ChatGPT Health
Karan Singhal, Head of Health AI at OpenAI, explains how ChatGPT Health is achieving attending-physician-level performance and already serving hundreds of millions of users. He details how OpenAI works with over 250 doctors, built the 49,000-criteria HealthBench evaluation, and ran one of the first randomized trials of AI copilots in clinical care. The conversation explores privacy and safety safeguards, medical multimodality, N-of-1 treatment plans, and how AI could become a standard part of global medical practice.
Nathan uses Granola to uncover blind spots in conversations and AI research. Try it at granola.ai/tcr with code TCR — and if you’re already using it, test his blind spot recipe here: https://bit.ly/granolablindspot
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CHAPTERS:
(00:00) About the Episode
(06:11) Cancer story and mission
(11:46) Designing safe health AI (Part 1)
(17:49) Sponsors: Claude | Serval
(21:09) Designing safe health AI (Part 2)
(26:48) Uncertainty, HealthBench and robustness (Part 1)
(30:23) Sponsors: Framer | Tasklet
(32:50) Uncertainty, HealthBench and robustness (Part 2)
(38:11) Chain-of-thought and evaluation
(46:49) Real-world performance and frontiers
(55:35) Multimodal data and science
(01:05:36) Personalization, privacy and monitoring
(01:15:47) Models, data and incentives
(01:29:31) Doctor adoption and workflows
(01:38:13) Scalable oversight and alignment
(01:51:06) Move 37 and future
(02:00:50) Episode Outro
(02:03:06) Outro
PRODUCED BY:
- multimodality
- Karan Singhal
- AI that can understand and process different types of information, like text, images, and sound.
- N-of-1 treatment plans
- Karan Singhal
- Medical treatments tailored specifically to a single individual's unique needs and characteristics.
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Questions people ask
- How is ChatGPT Health performing?
- ChatGPT Health is achieving attending-physician-level performance and is already serving hundreds of millions of users.
- What evaluation methods did OpenAI use for Health AI?
- OpenAI built the 49,000-criteria HealthBench evaluation and ran one of the first randomized trials of AI copilots in clinical care.
Page generated Oct 19, 2026. Summaries are Subvolts' own; the audio, artwork and notes belong to Erik Torenberg, Nathan Labenz.