Comparison, updated September 2026
# Consensus vs OpenEvidence vs CliniAtlas
Three tools come up whenever European clinicians ask which AI to use for evidence: Consensus, because it is open to everyone; OpenEvidence, because US colleagues praise it; and CliniAtlas, because it was built for European practice. They solve different problems. This page lays them side by side on the questions that matter for a doctor in the EU or UK. CliniAtlas is our product; we are not affiliated with the other two.

## At a glance

** **: **CliniAtlas**: **Consensus**: **OpenEvidence**:

**Available in the EU and UK**: Yes. Built and operated in the EU. | Available to European researchers; check current service terms. | No. Withdrew from the EU and UK in April 2026.

**Who it is for**: Verified healthcare professionals and students, European practice. | Researchers across disciplines, including medical researchers and clinicians. | Verified US clinicians (NPI-based access).

**What it searches**: PubMed, Europe PMC, EMA labels and assessment reports, and European clinical guidelines, per question. | A very large index of peer-reviewed papers across all fields, drawn from Semantic Scholar. | Peer-reviewed literature plus FDA, CDC, and US specialty-society content.

**How answers are built**: Source-linked evidence synthesis with study-type labels. The agent may reuse prior context or answer without retrieval when appropriate. | Paper summaries, cross-paper synthesis, and Deep review literature reviews with inline citations; features depend on the selected mode and plan. | A cited synthesis with source links.

**Evidence grading**: Guideline, regulatory, systematic review, RCT, observational, case report, and so on, shown per source. | Study-type and journal signals; no clinical evidence hierarchy per claim. | Not exposed per claim in public materials.

**Regulatory sources**: EMA SmPC and EPAR documents. | Focused on research papers; the cited documentation does not establish a dedicated EMA-label retrieval workflow. | FDA labelling.

**Price**: Free for verified clinicians and students. | Free tier with limits, paid plans for more. | Free for verified US clinicians, ad-supported.

**Data processing**: Core application and model inference in AWS eu-central-1. | US company; no EU-only residency promise in public materials. | US company; no EU-only residency promise in public materials.

The short version: Consensus is a search engine for papers on any subject. OpenEvidence is a clinical answer engine for US doctors that Europeans cannot currently use. CliniAtlas is a clinical answer engine for European doctors, with EMA and guideline sources and a grade on every citation.

## When Consensus is the right tool
When the question is scientific rather than clinical, when you want to scan many papers quickly or request a synthesized literature review, including when you are outside medicine entirely. It is also the easiest of the three to try, since it needs no professional verification.

## When CliniAtlas is the right tool
When you need a clinical answer you can check line by line: the trial behind a recommendation, the EMA label wording, the guideline that applies in Europe, and an explanation of what the retrieved evidence does not settle. Source labels help you inspect the evidence; they do not replace appraisal. Core application and inference currently run in the EU, while search terms also reach external source services.

## Further comparisons
OpenEvidence EU alternative (https://cliniatlas.com/compare/openevidence-alternative-eu/), UpToDate alternative for European doctors (https://cliniatlas.com/compare/uptodate-alternative/), Perplexity for doctors (https://cliniatlas.com/compare/perplexity-for-doctors/), and the ranked guide to eight alternatives for European clinicians (https://cliniatlas.com/guides/best-openevidence-alternatives-europe/).

## Frequently asked questions

**Is Consensus a good OpenEvidence alternative for European doctors?**
Consensus is available to European researchers and supports medical literature searches as well as broader scientific questions. It offers cited cross-paper answers and Deep review, not just individual paper summaries. CliniAtlas focuses on clinical evidence and dedicated European regulatory retrieval; compare actual source coverage for your question.

**What is the difference between Consensus and CliniAtlas?**
Consensus searches scientific literature across disciplines and can synthesize a cited review. CliniAtlas focuses on clinical questions, with tools for PubMed, Europe PMC, EMA documents, and European guidelines. Its agent chooses whether new retrieval is needed. These scope differences are not a head-to-head accuracy result.

**Can I still use OpenEvidence in Europe?**
Not through normal access. OpenEvidence withdrew from the EU and UK in April 2026, citing regulatory uncertainty around the EU AI Act, and had announced no return as of September 2026. Our OpenEvidence comparison page tracks the situation.

**Which tool grades the evidence?**
CliniAtlas places every source in the evidence hierarchy and shows the grade beside it. Consensus indicates study type and journal quality signals but does not grade claims. OpenEvidence's public materials do not describe per-claim grading.

**Are any of these clinical decision-support systems?**
CliniAtlas is intended for literature search, education, and professional evidence review, not patient-specific decisions. Other products have their own intended-use statements and terms; this comparison does not determine their regulatory classification.

Try CliniAtlas free (https://cliniatlas.com/chat/) Compare all 8 alternatives (https://cliniatlas.com/guides/best-openevidence-alternatives-europe/)
Sources checked 7 September 2026- Consensus product site (https://consensus.app/)
- Consensus: Deep review and inline citations (https://help.consensus.app/en/articles/11740827-how-to-use-deep-review)
- OpenEvidence product page (https://www.openevidence.com/)
- The Lancet Regional Health - Europe commentary on the April 2026 EU/UK geoblock (https://pmc.ncbi.nlm.nih.gov/articles/PMC13226252/)
- CliniAtlas evaluation methodology (https://cliniatlas.com/methodology/)

Last updated 7 September 2026. Competitor details reflect public product materials and may change; corrections are welcome at hello@discensmachina.com. CliniAtlas is not affiliated with or endorsed by Consensus or OpenEvidence.

Canonical page: https://cliniatlas.com/compare/consensus-vs-openevidence/