OpenEvidence
OpenEvidence operates an AI platform, often described as a clinical search assistant, that answers physicians' questions using peer-reviewed medical literature with citations. It is free to verified clinicians and funded by advertising, and reports rapid adoption among US physicians. It reached a $12 billion valuation in early 2026.
- Founded
- 2022
- Headquarters
- Cambridge, Massachusetts, US
- Founders
- Daniel Nadler, Zachary Ziegler
- Status
- Private
- Total funding
- ~$700M+
- Latest round
- Series D, $250M ($12B valuation, January 2026)
- Valuation
- $12B (January 2026)
- Key investors
- Google Ventures, Sequoia, Kleiner Perkins, Thrive Capital, NVIDIA
- Category
- Generative AI agents & clinical LLMs
- Products
- OpenEvidence clinical AI assistant
- Website
- www.openevidence.com
Covered in: Artificial Intelligence in Healthcare
Profile compiled from the public sources listed above. Funding, valuation, and employee figures are point-in-time and may be out of date.