ClinicalKey AI is an evidence-grounded clinical question-answering product built on Elsevier’s full-text medical library. Glass Health combines ambient documentation, structured differential diagnosis, assessment-and-plan drafting, and clinical Q&A in one encounter-centered workflow. Choose ClinicalKey AI for an institutional evidence product; choose Glass when the encounter must drive both reasoning and documentation.
ClinicalKey AI has moved well beyond a simple search box. Elsevier describes it as an EHR- and API-enabled clinical decision support product with daily-refreshed, copyright-cleared content, natural-language questions, citation validation, and patient-context support when the clinician provides context. It is a serious reference platform. The comparison with Glass is therefore about workflow architecture, not whether either product can support a clinical question.
The decision in brief
- Choose ClinicalKey AI when Elsevier’s content library, institutional access, EHR or API deployment, and source validation define the project.
- Choose Glass when ambient documentation, structured DDx, problem-based A&P, and clinical Q&A should share the same encounter context.
- ClinicalKey AI offers a 14-day individual trial and institutional deployment; Glass offers a free tier and public monthly pricing.
- ClinicalKey AI provides CME for eligible reviewed responses. Glass focuses on encounter workflow rather than continuing-education credit.
ClinicalKey AI and Glass Health at a glance
| Decision | Glass Health | ClinicalKey AI |
|---|---|---|
| Primary job | Encounter-centered documentation and CDS | Evidence-grounded clinical questions |
| Knowledge model | Citation-backed clinical Q&A in the Glass workflow | Daily-refreshed Elsevier and society content with citation validation |
| Ambient documentation | Built into the product | Not the product’s primary workflow |
| Clinical reasoning | Structured DDx and problem-based A&P | Conversational answers that can use supplied patient context |
| Integration | Epic, eClinicalWorks, athenahealth, and Elation on Max | SMART on FHIR SSO and API-enabled institutional deployment |
| Buying motion | Free tier and published monthly plans | 14-day clinician trial and institutional inquiry |
What ClinicalKey AI does well
ClinicalKey AI’s core advantage is the combination of broad licensed content and answer-level traceability. Elsevier says its knowledge base includes society guidelines, major journals, medical reference texts, clinical overviews, and drug information. The content is refreshed daily and copyright-cleared for the product.
The answer workflow includes:
- natural-language clinical questions and follow-up questions
- inline citations connected to the supporting source
- real-time citation validation intended to confirm that generated responses remain grounded in evidence
- patient-context-aware answers when the clinician includes relevant context
- Reading Assistant tools for summarizing, questioning, and verifying full-text articles
- institutional link-resolver support for subscribed full text
- CME credit for eligible reviewed responses
ClinicalKey AI also has a credible enterprise deployment story. Elsevier supports SMART on FHIR single sign-on inside the EHR and an API for organizations that want the answer experience inside another application. Those capabilities matter to health systems and clinical platforms that already license Elsevier content.
Where Glass takes a different approach
Glass begins with the clinical encounter. Its feature set combines ambient documentation with structured differential diagnosis, problem-based assessment-and-plan drafting, and clinical Q&A. The same encounter context can inform each output.
ClinicalKey AI can incorporate supplied patient context, but its primary interaction is still a question. Glass is designed for a longer arc: capture the visit, surface clinical considerations, organize the differential, draft the plan, and complete the note. That workflow can reduce the need to move between a reference product and a separate ambient scribe.
The products are not mutually exclusive. A health system may use ClinicalKey AI as an institutional evidence layer and Glass for clinician-facing encounter workflow. The decision turns on whether the buyer wants a content and retrieval platform, a documentation and CDS platform, or both.
Content, evidence, and source review
ClinicalKey AI’s closed, licensed corpus is a clear advantage for buyers who want Elsevier books, journals, society guidance, and drug content inside one governed environment. Citation validation and direct source links make the answer easier to inspect.
Glass uses citations in its clinical Q&A and ties reasoning to the current encounter. Its advantage is not a larger proprietary reference library. It is the ability to keep the note, differential, assessment and plan, and clinical questions connected to the same workflow.
For either product, a citation is a review aid rather than a guarantee. Clinicians still need to confirm that the source supports the statement and applies to the patient in front of them.
Access and pricing
Elsevier offers a 14-day ClinicalKey AI trial for individual clinicians and a sales path for institutional deployment. Exact institutional pricing is not published on the product page and depends on the organization and access model.
Glass publishes its current plans on Glass pricing:
| Glass plan | Monthly price | Primary scope |
|---|---|---|
| Lite | $0 | Limited ambient scribing and limited CDS |
| Starter | $20 | Standard ambient scribing and CDS, plus limited Deep Reasoning |
| Pro | $90 | Extended ambient scribing, CDS, and Deep Reasoning |
| Max | From $200 | Maximum capacity, priority processing, and supported EHR integration |
ClinicalKey AI’s commercial model fits a reference subscription and institutional license. Glass provides a lower-friction self-serve evaluation for clinicians who want to test the workflow before an EHR deployment.
Choose ClinicalKey AI when
- Elsevier’s full-text clinical content is a core procurement requirement
- the organization wants SMART on FHIR SSO or an API-enabled evidence layer
- citation validation and institutional full-text linking are important
- clinicians need eligible CME credit during evidence review
- the primary workflow is asking and validating clinical questions
Choose Glass Health when
- ambient documentation and CDS need to operate on the same encounter context
- structured differential diagnosis and problem-based A&P are required outputs
- the team wants a free starting point and published monthly pricing
- you need supported EHR integration for Epic, eClinicalWorks, athenahealth, or Elation
- the goal is to consolidate a scribe and an encounter-centered reasoning workflow
FAQ
What is ClinicalKey AI?
ClinicalKey AI is Elsevier’s generative clinical decision support product. It answers natural-language questions using a licensed medical knowledge base and connects responses to supporting content through inline citations.
Is ClinicalKey AI the same as the traditional ClinicalKey library?
No. Traditional ClinicalKey is a searchable medical reference library. ClinicalKey AI adds conversational answers, citation validation, patient-context support, Reading Assistant, and EHR or API access.
Does ClinicalKey AI work inside an EHR?
Elsevier supports SMART on FHIR single sign-on and an API-enabled deployment path. Organizations should confirm the exact integration and licensing requirements for their EHR.
Does ClinicalKey AI use patient context?
Yes. Elsevier says ClinicalKey AI can provide patient-context-aware answers when relevant patient details are included in the prompt or supplied through the workflow.
Does ClinicalKey AI generate ambient notes?
Ambient documentation is not its primary product. ClinicalKey AI is designed around evidence-grounded questions. Glass combines ambient notes with structured clinical reasoning.
Is there a ClinicalKey AI free trial?
Elsevier currently offers individual clinicians a 14-day trial. Institutional buyers use an inquiry process.
Bottom line
ClinicalKey AI is the stronger choice for an Elsevier-grounded evidence and institutional integration strategy. Glass is the stronger choice when the encounter, differential, plan, questions, and documentation must remain in one continuous workflow.