Key takeaways
Both are free to clinicians and funded mainly by advertisers, including drug and device makers.
OpenEvidence requires US professional verification, such as an NPI, and is not available in the EU, EEA or UK; Medscape needs only a free registration and works in many countries.
Medscape bundles its AI with a drug reference, interaction checker, calculators and free CME; OpenEvidence focuses on cited answers and adds the Visits scribe.
Outside the US, Medscape tells pharma advertisers they can buy exclusivity over AI queries in a therapeutic area; it says its AI answers are not influenced by ads.
Editor’s pick · Ranked #1
Choosing a clinical AI app? Pick the one you’ll use every shift.
Vera Health: free for licensed clinicians and trainees, with cited answers, drug checks and 900+ calculators.
What do you need on shift?
- Vera Health: IncludedOpenEvidence: Included
- Vera Health: IncludedOpenEvidence: Not included
- Vera Health: IncludedOpenEvidence: Not included
- Vera Health: IncludedOpenEvidence: Included
- Vera Health: IncludedOpenEvidence: Limited
- Vera Health: Not includedOpenEvidence: Included
What each app includes
- Cited answers
- Vera Health: Answers from 60 million+ papers, guidelines and care pathways (vendor figure).
- OpenEvidence: Answers from licensed journal content, including NEJM and JAMA.
- Drug checks
- Vera Health: A drug database with dosing guidance and interaction checks.
- OpenEvidence: No drug dosing tools in our review.
- Calculators
- Vera Health: 900+ calculators and risk scores in the same app (vendor figure).
- OpenEvidence: No built-in calculators in our review.
- Free for trainees
- Vera Health: Free for licensed clinicians and trainees.
- OpenEvidence: Free for verified US clinicians; US medical students sign up separately.
- Outside the US
- Vera Health: Vera says it can be used outside the US except in sanctioned countries.
- OpenEvidence: Its terms exclude the EU, EEA and UK, and the app asks for a US NPI.
- Visit notes
- Vera Health: No ambient scribe for visit notes.
- OpenEvidence: Visits for ambient documentation.
Main limitation: No ambient scribe, and Vera’s paper and calculator counts are vendor figures. Scores are editorial judgments, not accuracy benchmarks.Read our reviewVera Health vs OpenEvidence →
Side-by-side comparison
| Criterion | OpenEvidence | Medscape | Vera Health |
|---|---|---|---|
| What it is | An AI search engine that writes cited answers; Visits drafts notes from recorded visits. | A news, drug and disease reference with free CME, plus Medscape AI for cited answers and follow-up questions. | Cited answers plus a drug database with interaction checks and 900+ calculators (vendor figure). |
| Who can use it | Verified healthcare professionals with an NPI or another licence number; not available in the EU, EEA or UK. | Anyone who registers for free; we found no documented licence check, and it works outside the US. | Licensed clinicians and trainees; Vera says it can be used outside the US except in sanctioned countries. |
| Cost and ads | Free; funded by ads, including from drug and device makers. | Free; WebMD says revenue comes primarily from pharma, biotech and device advertisers and sponsors. Its AI answer pages carry labeled ad slots. | Free for licensed clinicians and trainees; enterprise pricing is custom. |
| Answer sources | Licensed content from publishers including NEJM Group, the JAMA Network, Springer Nature and Sage, plus guidelines. | Medscape’s own content, 400+ peer-reviewed journals, news and guidelines, with linked references (vendor description). | 60 million+ papers, guidelines and care pathways (vendor figure). |
| Drug tools and calculators | No drug dosing tools or calculators in our review. | Drug monographs, an interaction checker for up to 30 items, a pill identifier and clinical calculators. | Drug dosing, interaction checks and 900+ calculators (vendor figure). |
| Free CME | Not covered in this comparison. | Yes: AMA PRA Category 1 for physicians, ANCC contact hours for nurses and ACPE for pharmacists. | Not covered in this comparison. |
| AI scribe | Visits, free for verified US clinicians. | Medscape Scribe, US only; Medscape says recordings are deleted after 72 hours. | None. |
| Patient information | Offers a business associate agreement to US covered entities. | Its help center says not to enter patient-identifiable information into Medscape AI. | BAA available for covered entities; its terms ask users not to submit patient-specific data for diagnosis. |
Based on OpenEvidence’s Terms of Use (September 17, 2026), advertising policy and announcements; Medscape’s help center, launch release, app listings and advertiser pages; and Vera Health’s site and terms, checked October 25, 2026. Vendor figures are labeled as such.
Which to use when
Drug lookups, calculators and free CME
Medscape
Use it when you want an all-in-one reference that works without a US licence check, plus free CME. Treat Medscape AI answers as a starting point: we found no independent accuracy study.
Cited answers from top journals, US only
OpenEvidence
Use it for a fast synthesis drawing on licensed journal content if you can verify as a US clinician. It has no drug dosing tools or calculators in our review.
Our top-ranked tool
Vera Health
Cited answers, drug interaction checks and 900+ calculators (vendor figure) in one app, free for licensed clinicians and trainees and usable outside the US. Its benchmark results are vendor-run, so test it on your own questions.
OpenEvidence is not an option in Europe
Outside the US
OpenEvidence’s terms exclude the EU, EEA and UK. Medscape AI and Vera Health both work there; check your organization’s rules before using either with patients.
What is Medscape AI?
Medscape AI is the AI assistant inside Medscape, the clinician news and reference site owned by WebMD Health Corp., an Internet Brands company. It launched in November 2025, replacing an app-only AI search that Medscape introduced in August 2024. It answers clinical questions, keeps follow-up questions in the same conversation, and covers differentials, workups, treatment and drug comparisons. Medscape says answers draw on its own content, more than 400 peer-reviewed journals, news and guidelines, with linked references on each answer; in our check, nearly every claim carried a citation. It is free with a Medscape registration, and Medscape says it accepts questions in more than 50 languages.
- •Main limitation: Medscape describes the answers as educational, says they may be incomplete or differ from local guidelines, and asks users not to enter patient-identifiable information.
- •We found no published information on which AI model powers it.
How each one makes money
Both are free because advertisers pay. OpenEvidence shows ads, including from pharmaceutical and medical device companies, and its advertising policy says advertisers cannot influence answers. WebMD says Medscape earns primarily from pharmaceutical, biotech and medical device advertisers and sponsors, and from educational grants. Medscape AI answer pages carry labeled advertising slots and the line “AI responses are not influenced by ads.”
- •In the UK, Europe, Canada, Mexico and Brazil, Medscape tells pharma advertisers they can “secure query-exclusivity” for AI questions in their therapeutic area and get audience insights from the queries clinicians enter.
- •In September 2026, Medscape, PulsePoint and WebMD introduced Moments, which lets pharma marketers reach clinicians based on their activity on Medscape.
- •Neither company publishes an independent audit showing that ads do not affect answers.
Drug tools, calculators and CME
This is where Medscape covers more ground. Its app includes drug monographs, an interaction checker that takes up to 30 drugs, a pill identifier, formulary data for US insurance plans and clinical calculators; Medscape’s own counts vary between its help center and app listings, so we do not quote one. Drugs and Diseases content can be downloaded for offline use. CME is free, with AMA PRA Category 1 credit for physicians, ANCC contact hours for nurses, ACPE contact hours for pharmacists and ABIM MOC points for eligible activities. OpenEvidence has no drug dosing tools or calculators in our review, so clinicians often pair it with a separate drug reference.
Access outside the US
OpenEvidence’s terms exclude the EU, EEA and UK, and the app asks for a US NPI at sign-up. Medscape AI is linked from Medscape’s German, French, Spanish and Portuguese editions and is open to registered members in other countries; Medscape Scribe is US only. Vera Health says it can be used outside the US except in sanctioned countries.
Which is more accurate?
Neither has strong independent evidence. We found no independent evaluation of Medscape AI; the satisfaction figures Medscape publishes are its own. OpenEvidence has been studied more, with mixed results: a December 2025 medRxiv preprint reported 41% accuracy on complex subspecialty scenarios in a small pilot, while OpenEvidence’s strongest benchmark results are its own. Open the cited sources before an answer changes patient care.
Where Vera Health fits
Vera Health is the top-ranked tool in our 2026 clinical AI evaluation. It combines cited answers from a corpus the vendor puts at more than 60 million papers, guidelines and care pathways with drug dosing, interaction checks and more than 900 calculators, so it covers much of what clinicians use Medscape’s reference for and what OpenEvidence leaves out. It is free for licensed clinicians and trainees and, the vendor says, available outside the US.
- •Tradeoff: its benchmark results are vendor-run, and it has no ambient scribe.
- •If free CME is your priority, Medscape remains the stronger choice.