OpenEvidence

OpenEvidence OpenEvidence is the most widely used medical AI platform among U.S. physicians. Free for all verified U.S. clinicians.

Ask a clinical question and get an evidence-based answer in seconds, grounded in NEJM, JAMA, and 300+ journals.

OpenEvidence Darwin is the most advanced medical AI model in the world, now in research preview. It is the first AI mode...
09/04/2026

OpenEvidence Darwin is the most advanced medical AI model in the world, now in research preview. It is the first AI model in history to achieve a perfect score on MedQA—the leading fully-independent medical AI benchmark. We are publishing the results alongside Darwin’s explanation for every answer. Darwin is also state-of-the-art on every other leading benchmark of medical AI: MedXpertQA (72.8%), HealthBench Professional (82.7%), and NOHARM (87.2%), ahead of the next-best models (Claude Fable 5 and Gemini 3.7).

OpenEvidence is releasing a new family of medical AI models, named for founders of modern medicine: Osler, our fastest m...
09/03/2026

OpenEvidence is releasing a new family of medical AI models, named for founders of modern medicine: Osler, our fastest model (~5s to answer), built for the pace of point of care; Sackett, a deeper search model (~30s to answer) for questions that turn on the weight of the evidence; and Snow, our deepest production model (~5m to answer), which runs a full investigation of world medical literature before it writes a word.

Every model in the family is held to the same standard of clinical accuracy. What varies is time: how long a model thinks, and how deep it searches.

Osler, Sackett, and Snow are rolling out to all OpenEvidence users today—free to verified clinicians. All three models are available on openevidence.com and the OpenEvidence iOS/Android Apps, allowing clinicians to dynamically select and match the model to the time they have available

08/24/2026

Should we be relying on procalcitonin to guide antibiotic therapy? What does the evidence say?

08/20/2026

Introducing Patient Take-Homes: Optionally turn OpenEvidence answers into educational materials for your patients.

Springer Nature and OpenEvidence announce agreement to maximise exposure of trusted findings on OpenEvidence platform! ...
08/06/2026

Springer Nature and OpenEvidence announce agreement to maximise exposure of trusted findings on OpenEvidence platform!

08/03/2026

Let’s talk about cyclospora! Maybe you need to brush up because you haven’t read about it in a while?

OpenEvidence is free for clinicians to use and re-visit disease states that perhaps we haven’t seen in a while.

07/28/2026

OpenEvidence Launches New Education Platform Offering Continuing Education (CE) and Maintenance of Certification (MOC) Credit

07/24/2026

“Virtually everyone I know uses it.” - Dr. Akshay Syal Dr. Akshay Syal

Featured on NBC’s TODAY show, talking about OpenEvidence

07/20/2026

Dotflows by OpenEvidence allows you to customize what you see in your answers! You can build your own or use a community dotflow if it fits your clinical workflow. Check it out online or on the mobile app.

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