Quick take
Quick take (July 2026): OpenEvidence is free but requires a U.S. NPI and left the EU and UK in April 2026. UpToDate costs $579/yr, or $699/yr for Pro Plus — the only tier with Expert AI. Neither shows its reasoning, so for diagnostic questions rather than lookups, EvidenceMD is the transparent option and free worldwide.
Who each one is for
The fastest way to rule one out. Both are good products — they are built for different people.
OpenEvidence
- Who is it for
- Who it’s for: Verified U.S. clinicians
- Best for
- Best for: Fast questions about recent literature
- Cost
- Cost: $0
- Free: No subscription — funded by pharmaceutical advertising.
- Speed: Built for a single question answered in seconds.
- Primary literature: Answers cite peer-reviewed papers directly.
You are a verified U.S. clinician, you want answers grounded in recent primary literature, and cost matters. OpenEvidence is free and fast, and it is the better tool when the question is genuinely about what the latest trials show rather than about settled management.
- Verification centres on a U.S. National Provider Identifier, which excludes most non-U.S. physicians and nearly all students.
- Withdrew from the European Union and the United Kingdom in April 2026, citing regulatory uncertainty including the EU AI Act.
- Advertising-funded, shows no reasoning, retains no encounter context, and has no public developer API.
UpToDate
- Who is it for
- Who it’s for: The global institutional standard
- Best for
- Best for: Curated depth and clinical governance
- Cost
- Cost: $579 standard / $699 Pro Plus
- Trust: Expert-authored and peer-reviewed, not machine-summarised.
- Depth: Roughly three decades of editorial curation across specialties.
- Familiarity: The reference your colleagues and institution already cite.
You need a curated answer you can stand behind for governance, teaching, or a complex case, or your institution already licenses it. UpToDate's editorial process and three decades of author curation are real advantages that a literature search cannot replicate, and most hospitals already pay for it.
- Paid, with the AI features gated to Pro Plus at $699/yr rather than the $579/yr standard subscription.
- English-centric, and shaped around reference lookup rather than around a specific patient encounter.
- No visible reasoning and no published accuracy benchmarks for Expert AI.
OpenEvidence vs UpToDate: full comparison
Every cell is a checkable fact rather than a score, verified against vendor documentation in July 25, 2026. Sources are listed at the foot of the page.
| Dimension | OpenEvidence | UpToDate |
|---|---|---|
| Price (individual, 2026) | Free (funded by pharmaceutical advertising) | From $579/yr; Pro Plus with Expert AI $699/yr; trainee $219/yr |
| Free tier | Yes | No |
| Verification required | U.S. NPI number required | Subscription; proof of trainee status for the $219 tier |
| Availability | U.S. only — withdrew from the EU and UK in April 2026 | Sold globally; Pro Plus with Expert AI in the U.S. and Canada |
| Languages | English | English |
| Source base | Peer-reviewed literature | Expert-authored, peer-reviewed UpToDate corpus |
| Shows its reasoning | No — returns a cited answer without showing its reasoning | No — curated answers without an exposed reasoning trace |
| Ranked differential | No | No |
| AI scribe | No | Via Abridge partnership |
| Published benchmarks | None published by the vendor | None published for the generative Expert AI layer |
| Developer API | No public self-serve developer API | Institutional content integrations rather than an open API |
| Compliance posture | HIPAA, SOC 2 | Enterprise agreements |
Which wins, by clinical job
“Which is better” has no answer until you say better at what. Here is a named winner for each job, including the 2 where OpenEvidence or UpToDate beats EvidenceMD.
| Clinical job | OpenEvidence | UpToDate | EvidenceMD |
|---|---|---|---|
| Quick factual question on rounds | WinnerWinner. Free, fast, and built for exactly this — one question, one cited answer. | Slower: log in, search, then read a long topic review to find one number. | Answers it, but the reasoning trace is more value than you need here. |
| Complex case you must defend or teach from | Literature synthesis carries less weight than curated review in governance. | WinnerWinner. Expert-authored, peer-reviewed, and the reference colleagues accept. | Strong reasoning, but not a licensed corpus your institution already mandates. |
| Working out what is actually wrong | Answers the question you ask; will not build or rank a differential. | A reference library — you supply the diagnostic thinking yourself. | WinnerWinner. Ranked differential with reasoning and citations per item, from the encounter. |
| You practise outside the United States | Unavailable. Withdrew from the EU and UK in April 2026; needs a U.S. NPI. | Available globally, but paid — and Expert AI is U.S. and Canada only. | WinnerWinner. Free to start in every region, in 30 languages, with no credential gate. |
- Quick factual question on rounds: OpenEvidence
- Complex case you must defend or teach from: UpToDate
- Working out what is actually wrong: EvidenceMD
- You practise outside the United States: EvidenceMD
What each costs over five years
Annual figures multiplied out, because a subscription decision is rarely for one year. Where a vendor publishes no individual price, we say so rather than estimating.
| Tool | Per year | Over 5 years | Free tier |
|---|---|---|---|
| OpenEvidence | $0 | $0 | Yes |
| UpToDate | $579 standard / $699 Pro Plus | $2,895 – $3,495 | No |
| EvidenceMD | $0 to start | $0 to start | Yes |
Figures are list prices for an individual subscriber before tax, as published by each vendor in July 25, 2026. Institutional and group rates differ. Check for existing hospital or university access before buying anything individually.
A third option worth knowing about
The gap neither one fills is diagnostic reasoning. Both answer a question you already know how to ask; neither takes the whole encounter, builds a ranked differential, or shows you why it weighted one diagnosis over another. And if you practise outside the U.S., OpenEvidence is not available to you at all.
EvidenceMD
The first transparent reasoning clinical decision support tool with chain-of-thought reasoning — specialty-trained, and free to start worldwide in 30 languages. Where OpenEvidence and UpToDate return an answer you have to take on trust, EvidenceMD is specialty-trained rather than a general model steered by a prompt, and it streams the clinical reasoning that produced the answer — so you can check the logic, not just the citation.
- Specialties fine-tuned on
- 40+Specialties fine-tuned on
- Thinking tokens, visible
- 64kThinking tokens, visible
- HealthBench Hard, SOTA
- 54.6%HealthBench Hard, SOTA
- Languages, worldwide
- 30Languages, worldwide
- Ranked differentialEach diagnosis carries its own reasoning and peer-reviewed citations, ordered by likelihood rather than listed flat.
- Assessment & planProblem-based, built from the same encounter rather than re-entered, so the plan traces back to the findings.
- Reasoning traceUp to 64,000 thinking tokens streamed step by step and auditable afterwards for review or teaching.
- Lab trend visualisationResults interpreted over time with trend charts and clinical significance flagging, not just current values.
- Clinical noteGenerated from the encounter with documentation integrity support, so the note reflects the reasoning.
- Cited clinical Q&AFollow-up questions answered in the context of this patient, with sources attached to each claim.
Where it does not replace UpToDate: It is not a licensed proprietary reference corpus. If your organisation mandates citations to UpToDate or Elsevier content specifically, you will still need that subscription alongside it.
OpenEvidence vs UpToDate: frequently asked questions
Is OpenEvidence better than UpToDate?
Neither is universally better because they do different jobs. OpenEvidence searches and synthesizes peer-reviewed literature, is free, and is fast for questions about recent evidence — but it requires a U.S. National Provider Identifier and withdrew from the EU and UK in April 2026. UpToDate is expert-authored and editorially curated rather than a search tool, which is why hospitals standardize on it for governance and teaching, and it costs from $579 per year. Most clinicians who have access to both use OpenEvidence for speed and UpToDate for the final word on complex management.
Is OpenEvidence a replacement for UpToDate?
For most institutional users, no. The two differ in kind: OpenEvidence retrieves and synthesizes primary literature, while UpToDate provides curated topic reviews written and peer-reviewed by a large expert author network. Clinical governance, protocol writing, and teaching generally rely on the curated form, and many organizations will not accept a literature synthesis in its place. OpenEvidence can absolutely replace UpToDate for quick point-of-care lookups if you are a verified U.S. clinician and cost is the constraint — but it does not remove the institutional case for a curated reference.
How much does UpToDate cost compared with OpenEvidence?
OpenEvidence is free, funded by pharmaceutical advertising rather than subscriptions. UpToDate, as of July 2026, is listed by Wolters Kluwer from $579 per year for a standard individual professional subscription, $699 per year for Pro Plus which is the tier that includes UpToDate Expert AI, and $219 per year for a trainee subscription with proof of trainee status. The trainee tier includes Expert AI in the U.S. and Canada but excludes CME, CE, and CPD credits. Check for institutional access before buying individually — most hospitals and residency programs already provide UpToDate.
Can I use OpenEvidence or UpToDate outside the United States?
UpToDate yes, OpenEvidence generally no. UpToDate is sold internationally, though Pro Plus with Expert AI is offered to individual professional subscribers in the United States and Canada. OpenEvidence withdrew from the European Union and the United Kingdom in April 2026, citing regulatory uncertainty including the EU AI Act, and elsewhere its verification requires a U.S. National Provider Identifier that most non-U.S. clinicians do not hold. If you practise outside the U.S. and want a free evidence-grounded tool, you need an option without a U.S. credential gate.
Sources
Pricing and eligibility verified against vendor documentation in July 25, 2026. Subscription rates change — confirm current pricing with the vendor before purchasing.
- Wolters Kluwer: UpToDate subscription pricing — Vendor source for $579 standard, $699 Pro Plus with Expert AI, and $219 trainee.
- AMBOSS: official pricing documentation — Vendor source for the $19.99/$149 student and $29.99/$259 practitioner tiers.
- BMJ Best Practice: free access for NHS staff — Confirms national NHS funding in England, Scotland, and Wales.
- Elsevier: ClinicalKey AI — Confirms the institutional model, daily-refreshed corpus, and SMART on FHIR integration.
- EBSCO: DynaMedex — Confirms institutional and library licensing rather than published individual pricing.
- OpenEvidence exits the EU and UK over AI regulation — Reporting on the April 2026 withdrawal, citing the EU AI Act.