Glass Health vs UpToDate (2026)
Both answer clinical questions with citations, and they are built on different sources and checked in different ways. Glass Health reasons over an index of more than 38 million peer reviewed articles, guidelines and FDA drug information, produces ranked differentials, assessment and plan drafts and ambient notes in one workflow, and was assessed in the Harvard and Stanford ARISE NOHARM physician validated safety benchmark, which also recorded that its reasoning is weaker on complex multi system cases. UpToDate Expert AI answers only from UpToDate's own content, curated by more than 7,600 physician authors and editors, opens every answer by stating what it assumed about the patient, and reaches about 2,000 hospitals through Enterprise Edition. If your failure mode is reasoning and documentation for an individual clinician in one tool, start with Glass. If it is an answer grounded in an edited corpus your institution already licenses, start with UpToDate.
- An outside benchmark has checked it. Glass was assessed in the Harvard and Stanford ARISE NOHARM evaluation, a physician validated clinical safety benchmark it did not control, where UpToDate has published no independent evaluation of Expert AI.
- Reasoning and documentation come in one product, with ranked differentials and workups, problem oriented assessments and plans, clinical question answering, and ambient scribing for clinic notes, H and Ps, progress notes, discharge summaries and handouts.
- A business associate agreement can be reviewed and accepted inside the API settings before production data is sent, and a free tier lets a clinician start within minutes.
- Answers come only from UpToDate's own expert authored content, maintained by more than 7,600 physician authors and editors, with drug information from Lexidrug.
- Every answer opens with an assumptions section naming what was taken for granted about the patient, and inline nudges ask the clinician for missing context such as comorbidities or ICU status.
- Reach is broad, with more than three million clinicians reported, Epic integration for decision support and patient education in up to nineteen languages, and Expert AI included in all US personal subscriptions sold through a public webstore.
This comparison is published by AI Health Index, an independent research platform that compares healthcare AI vendors objectively. Glass Health and UpToDate 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 | UpToDate |
|---|---|---|
| Primary category | Clinical Decision Support | Clinical Reference & Evidence |
| Founded | 2021 | Not recorded |
| Headquarters | San Francisco, California | Waltham, Massachusetts |
| Website | glass.health | wolterskluwer.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.
UpToDate
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Product / capability
Wolters Kluwer expanded its generative AI solution, UpToDate Expert AI, by integrating comprehensive medication data from UpToDate Lexidrug.
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
Clinical reference and decision support published by Wolters Kluwer Health and in market for more than thirty years, with content curated by over 7,600 physician authors and editors and reported use by more than three million clinicians across thousands of hospitals worldwide.
Source: AI Health Index, September 2026
Questions buyers ask
How do Glass Health and UpToDate 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 UpToDate, patient education material is offered in up to nineteen languages, which is a real interoperability property in a multilingual health system. The company's release of 3 June 2026 states that more than half of United States Enterprise Edition customers, approximately 2,000 hospitals, had signed up for the Expert AI version by 30 April 2026, so the generative layer is reaching the chart through the same route. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 20, 2026. No vendor pays for placement.
How are Glass Health and UpToDate 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 UpToDate, enterprise pricing, which is what a health system buys and the tier that reaches most clinicians, is gated behind a sales conversation. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 20, 2026. No vendor pays for placement.
How do Glass Health and UpToDate handle patient data?
With Glass Health, the exposure is wide and getting wider.
The terms of use state that UpToDate and its licensors are not intended to receive, transmit, store or process protected health information under HIPAA, which places the product outside the patient data relationship by contract. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 20, 2026. No vendor pays for placement.
Which settings and specialties do Glass Health and UpToDate 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 UpToDate, the trainee and medical university segments are substantial, and continuing medical education accrues inside the AI product, so the product serves workforce and training as well. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified September 20, 2026. No vendor pays for placement.
Related comparisons
Other published head to head assessments involving these vendors or their closest peers.
UpToDate's terms state that it is not intended to receive, store or process protected health information, so no business associate agreement is offered and patient identifiers belong outside it, and nothing published attests to its security. Its published evidence is for the reference product and predates the generative layer.
Glass names no foundation model or version, so the system assessed in the benchmark cannot be shown to be the one running now, and it publishes no SOC 2, HITRUST or ISO 27001 attestation while recording patient encounters through a free tier. Glass also publishes its own competitor comparison pages, so its descriptions of rivals are self interested. An earlier version of this comparison said UpToDate publishes no HIPAA position; its terms of use state one plainly. That statement was corrected on 10 October 2026.