Glass Health vs OpenEvidence (2026)
Both put a language model between a clinician and the literature, and they stop in different places. OpenEvidence answers the clinical question from published evidence, free to verified clinicians and paid for by advertising. Its Visits product now also records encounters and drafts the note. Glass Health takes a case description and returns a ranked differential with suggested workups and a drafted assessment and plan, which is advice about a specific patient. It also scribes, and it sells its whole stack to other builders through a developer API. Its reasoning ranked among the top systems in ARISE NOHARM, a physician validated safety benchmark run out of Harvard and Stanford. Choose OpenEvidence for what the evidence says, and Glass for help reasoning through a specific patient.
- A ranked differential with workups and a drafted assessment and plan from one case description.
- A placement in an external safety benchmark, which also recorded weaker reasoning on complex multi system cases.
- A free tier, a published plan ladder, and a business associate agreement a team can accept in its API settings.
- Answers grounded in more than 300 journals under named partnerships.
- A public trust center carrying its SOC 2 Type 2 report, where Glass publishes no security certification.
- Deployments inside the record at named health systems.
This comparison is published by AI Health Index, an independent research platform that compares healthcare AI vendors objectively. Glass Health and OpenEvidence 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 | Glass Health | OpenEvidence |
|---|---|---|
| Primary category | Clinical Decision Support | Clinical Reference & Evidence |
| Founded | 2021 | 2021 |
| Headquarters | San Francisco, California | Miami, Florida |
| Website | glass.health | openevidence.com |
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.
OpenEvidence
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Product / capability
OpenEvidence added the American Society of Addiction Medicine's clinical guidelines, guidance and implementation resources to the content behind its answers.
Source -
Product / capability
OpenEvidence launched Patient Take-Homes, a new feature allowing clinicians to optionally turn AI-generated answers into educational materials for their patients.
Source -
Clinical evidence
A systematic review published in npj Digital Medicine evaluated 11 studies assessing OpenEvidence's clinical question-answering capabilities.
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.
Glass Health is a clinical intelligence platform whose reasoning engine is the product. It generates ranked differential diagnoses with suggested workups from a case description, drafts problem-oriented assessments and plans, answers clinical questions, and performs ambient scribing across clinic notes, H&Ps, progress notes, discharge summaries and patient handouts.
Source: AI Health Index, September 2026
AI medical search and clinical decision support used at the point of care, free to verified United States and Canadian clinicians and funded by pharmaceutical and medical device advertising shown inside the product, with enterprise deployments embedded in the electronic health record at named health systems. The published model family is Osler for direct answers in seconds, Sackett for a more thorough survey.
Source: AI Health Index, September 2026
Questions buyers ask
How do Glass Health and OpenEvidence work with the EHR?
For Glass Health, the language has been assisted workflows rather than integration, the capability is gated to the top paid tier, and the company's own comparison material tells teams to confirm the current implementation path directly.
With OpenEvidence, the first party evidence is recent. On 22 September 2026 the company and the University of Texas Medical Branch announced a collaboration putting cited clinical evidence inside the electronic health record, live at UTMB since March 2026, with adoption reported as growing since launch. 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 Glass Health and OpenEvidence priced and sold?
In Glass Health's case, a clinician can evaluate and adopt the product without procurement, at a price the vendor publishes rather than quotes.
For OpenEvidence, the named health system collaborations announced through 2026 carry no commercial terms. It is also not stated whether free individual use by a health system's clinicians creates any institutional obligation before a contract exists. 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 Glass Health and OpenEvidence handle patient data?
With Glass Health, the exposure is wide and getting wider.
In OpenEvidence's case, the scope is narrower than it first looks. The exclusion is drawn around protected health information, not around everything a clinician types. 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 Glass Health and OpenEvidence cover?
For Glass Health, the company's published site map carries separate sections for clinicians, practices, developers and patients, the last including a how to use it for patients page and guides on organizing medical records, understanding laboratory results, connecting records to a health application and organizing wearable data. A patient facing line is a different product with different obligations.
With OpenEvidence, the product now covers the consultation, the encounter through Visits, and patient contact through the Dialer, with an education platform carrying continuing education and maintenance of certification credit added on 28 July 2026. 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. Glass names no model or version, so a buyer cannot confirm that the system benchmarked is the one running now. OpenEvidence is free and funded by advertising.
Ask Glass how a buyer learns when the model behind the benchmark changes, and ask OpenEvidence how a Visits note reaches the chart.