OpenEvidence
Built for clinical literature. Answers cite primary medical research, and it is free for verified clinicians.
What OpenEvidence is best for
The categories OpenEvidence is listed in, and how strong a fit it is in each.
Search, Research & Academics
Web research, deep research, books, academic papers, citations, news, fact-checking.
Built for this
OpenEvidence’s biggest strengths
Search, Research & AcademicsBuilt for clinical literature. Answers cite primary medical research, and it is free for verified clinicians.
Where it may not be the best fit
Search, Research & AcademicsMedicine only, and access is gated behind clinician verification. No use for a history or engineering student.
OpenEvidence pricing
OpenEvidence has a free plan. Free for verified clinicians, ad-supported
FreeFree for verified clinicians, ad-supported
$0Checked by hand on 4 September 2026 — Free for verified clinicians, no paid tier — nothing priced to watch Prices change often, so confirm on the provider’s own page before spending.
Who makes OpenEvidence
Ad-supported distribution to clinicians. Unusual business model for the cohort and the reason growth has been so fast.
CompanyOpenEvidence
Founded2021
Based inCambridge, US
SectorHealthcare
ModelClinical answer engine
StatusPrivate
Primary usersUS physicians
Free planYes
Valuation$12B (2026-07)
InvestorsSequoia, GV, Kleiner Perkins, Thrive
ComputeThird-party
Public listingNone announced
Best alternatives to OpenEvidence
Tools that do comparable work, best fit first, drawn from the catalogue rather than hand-picked. Every one is listed whether or not there is money in it for us.
Connected Papers
Free
Builds a similarity graph from citation data rather than from a language model, so nothing in the output is generated and there is nothing to hallucinate.
View Connected Papers →Consensus
Free
Searches published papers and tells you how many of them support a claim, which turns a yes-or-no question into a count you can inspect.
View Consensus →Elicit
Free
Searches actual papers and extracts findings into a table you can check, one row per study, rather than answering in prose.
View Elicit →EvidenceHunt
Free
Scoped to clinical evidence and built with practising clinicians, so the filters match how medical literature is actually appraised.
View EvidenceHunt →Gemini Deep Research
Free
Runs a multi-step search across dozens of sources and returns a structured, referenced report. Strong first pass on an unfamiliar field.
View Gemini Deep Research →Gemini Notebook
Free
You upload the sources and it answers only from them, linking every sentence to the passage it came from. The strongest verification pattern here.
View Gemini Notebook →OpenEvidence by job
Where OpenEvidence sits in the wider category pages.
Best AI for Research
Built for this — Web research, deep research, books, academic papers, citations, news, fact-checking.
Questions about OpenEvidence
Is OpenEvidence free?
Yes — Free for verified clinicians, ad-supported. There is no paid tier above it.
What is OpenEvidence best at?
Built for clinical literature. Answers cite primary medical research, and it is free for verified clinicians. It is listed under Search, Research & Academics, and this is what it is built for.
What should I watch out for with OpenEvidence?
Medicine only, and access is gated behind clinician verification. No use for a history or engineering student.
What are the alternatives to OpenEvidence?
6 tools do comparable work: Connected Papers, Consensus, Elicit, EvidenceHunt, Gemini Deep Research, Gemini Notebook. 6 of them have a free plan.
How current is this OpenEvidence pricing?
Checked by hand on 4 September 2026, because OpenEvidence cannot be read automatically: Free for verified clinicians, no paid tier — nothing priced to watch Prices change often — confirm on the provider's own page before spending.