Atropos Health vs Vera Health (2026)
Both answer a clinical question, and they reach for different evidence when the literature runs out. Vera Health searches what has been published. It is built retrieval first over a corpus given as more than 60 million papers, guidelines and care pathways, grades the evidence, then writes a short cited answer, free to verified clinicians. Atropos Health starts where that ends. Its ChatRWD application generates an observational study in minutes across a federated network the company describes as covering more than 330 million US patients, and scores how fit the data is for each question. Use Vera first, and Atropos when you already know the literature is silent.
- New observational studies from real world data when no trial covers the patient.
- A Real World Fitness Score on every answer, rating how fit the data was for that question.
- A named SOC 2 Type II report, available on request through its trust portal.
- The full text of its business associate agreement, readable before any sales conversation.
- Evidence graded before the answer is written, under a named clinical council of sixteen physicians.
- Free use for verified clinicians and trainees, with unlimited searches.
This comparison is published by AI Health Index, an independent research platform that compares healthcare AI vendors objectively. Atropos Health and Vera Health are each graded against the same capability taxonomy, from each vendor's own public materials and the regulatory record, under the AI Health Index verification standard. No vendor pays for placement, and no vendor has reviewed this page. How this evidence is graded
Plain facts
| Fact | Atropos Health | Vera Health |
|---|---|---|
| Primary category | Clinical Reference & Evidence | Clinical Reference & Evidence |
| Founded | 2020 | Not recorded |
| Headquarters | Palo Alto, California | San Francisco, California |
| Website | atroposhealth.com | verahealth.ai |
Side by Side
Select any grade to read the note behind it.
Product updates
The latest logged changes from each vendor, newest first, each linked to its source.
Atropos Health
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Product / capability
Atropos Health states it expanded its federated Atropos Evidence Network to cover over 330 million U.S. patients, including more than 150 million EHR records with clinical notes, and added imaging and omics data linked to clinical outcomes and mortality through data partners including Norstella, Arcadia and OneMedNet.
Source
Vera Health
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Clinical evidence
Vera Health ran 100 questions from the public Real-POCQi dataset of real physician questions through Vera and three frontier models, and reused the study's published answers from OpenEvidence and GPT-5.5.
Source -
Safety / governance
Vera Health described how it governs answer quality.
Source
Each vendor in one paragraph
Written to be quoted whole. Each paragraph opens the AI Health Index profile of the vendor: what the product is, who buys it and what it does.
Real world evidence generation, spun out of Stanford's Green Button project in 2020 and built to answer the question a clinician actually has at the bedside when no trial covers their specific patient. GENEVA OS is the underlying operating system across a federated network the company describes as covering more than 330 million United States patients, including more than 150 million records carrying clinical notes, imaging and omics data reached through Norstella, Arcadia and OneMedNet.
Source: AI Health Index, September 2026
Clinical evidence search engine for licensed clinicians, operated by Veracity-Health Inc., a Delaware corporation with a San Francisco address, and free to verified clinicians and trainees with unlimited searches. The product is built retrieval first, which the company describes as the reverse of assistants that generate first.
Source: AI Health Index, September 2026
Questions buyers ask
How do Atropos Health and Vera Health work with the EHR?
Atropos connects to data infrastructure and to other vendors' applications: Google Cloud's Healthcare Data Engine through its application programming interfaces and BigQuery, Amazon Web Services with a Marketplace listing, delivery inside Microsoft Teams, and embedding within a partner ambient documentation platform that is not named.
With Vera Health, the company's home page, FAQ, privacy policy and business associate agreement name no record system, marketplace listing, FHIR or HL7 conformance, or public API, and make no integration claim. The product is delivered on the web and as mobile apps and is used alongside the record rather than inside it; the privacy policy mentions third party integrations only in general terms. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 29, 2026. No vendor pays for placement.
How are Atropos Health and Vera Health priced and sold?
In Atropos Health's case, the company markets a simplification of the purchasing model, stating that a complicated model for buying data is no longer necessary, which is a claim about pricing structure made without publishing the structure.
The FAQ states that Vera is free for licensed clinicians and trainees, with unlimited searches and ongoing updates at no charge, on signing up with professional credentials. A clinician can see the full cost of the product they will use, and start, without speaking to anyone. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 29, 2026. No vendor pays for placement.
How do Atropos Health and Vera Health handle patient data?
Atropos operates a federated evidence network rather than a central data warehouse: its nodal deidentification approach links records only at query time, maps the result to the HIPAA Safe Harbor standard, and states that no patient level data is transferred to the querying party, so contributing institutions retain possession of their own source data.
In Vera Health's case, the privacy policy (last updated 15 July 2026) states that personal data is not used to train the company's AI systems, and commits to data minimization with encryption, access controls and anonymization or pseudonymization for data used in training. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 29, 2026. No vendor pays for placement.
Which settings and specialties do Atropos Health and Vera Health cover?
For Atropos Health, the limit is that coverage is a property of the data rather than a validated operating range. Nothing published establishes which clinical domains the network answers well and which it answers poorly, and the company's own Real World Fitness Score exists precisely because that varies question by question.
With Vera Health, the corpus is given as more than 60 million papers, guidelines and care pathways, with calculators, differential diagnosis and treatment plan views, and the home page's example questions span endocrinology, family medicine, oncology and emergency medicine. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 29, 2026. No vendor pays for placement.
Related comparisons
Other published head to head assessments involving these vendors or their closest peers.
Both records were reviewed on this site in September 2026. Vera Health's accuracy figures are its own and carry no method. Atropos publishes no price, and its site could not be read at review, so parts of its record rest on earlier reads and outside sources.
Ask Atropos how a generated study's confounding is checked before a clinician acts on it, and ask Vera Health for the method behind its accuracy figures.