Features
Every vendor in the AI Health Index is assessed against fifteen capability axes in four groups. Each axis carries a letter grade and a source basis, and each is gradeable from public artifacts: vendor documentation, trust centers, regulatory databases, EHR marketplace listings, and published research.
How grades read
An AI Health Index grade measures what a buyer can verify from public sources on the date shown. It is not a rating of how good the product is. A vendor can build an excellent system and grade low on an axis because it publishes nothing an outsider can check.
Grades are not aggregated into a composite score. An AI Health Index grade reflects the assessed strength of the vendor’s disclosure and evidence on that axis, not a comparison to other vendors. A low grade is dated: it records what was located in public sources on the verification date shown on the vendor profile, and vendors that publish more are regraded. See the Methodology for verification standards.
AI Centrality
Whether artificial intelligence is the product itself, the engine of a core module, or a feature layer on a platform whose value stands without it. This axis is how a reader distinguishes an AI-native product from a platform with AI capabilities. The index includes companies across the full range.
How the whole index grades on this axisAutonomy and Oversight Model
What the AI is permitted to do (draft, decide, or act) and how rigorously the vendor discloses its human oversight structure: escalation thresholds, supervision, override paths. Grades disclosure rigor, not autonomy itself. High autonomy with a documented oversight model can grade well; any autonomy with no disclosed oversight grades poorly.
How the whole index grades on this axisModel and Technology Transparency
Disclosure of what is under the hood: proprietary models versus fine-tuned foundation models, training data claims, model cards, versioning and update practices.
How the whole index grades on this axisModel Supply Chain Disclosure
Who else is in the chain between a patient record and an answer, and on what terms. Whether the model provider is named rather than described, whether subprocessors are enumerated, what retention and training terms govern data once it reaches them, and whether the vendor has published the terms it negotiated rather than the provider’s default posture. The strongest records answer the question structurally rather than contractually: the artefact is obtainable, or identifiers are removed before any model sees them, or the transfer does not occur at all.
How the whole index grades on this axisClinical and Operational Evidence
The strength of evidence behind performance and outcome claims, from peer-reviewed prospective multi-site validation at the top of the scale down to outcome percentages published with no methodology. Vendor-reported statistics are recorded as vendor-reported and never restated as independent results.
How the whole index grades on this axisAI Safety and PHI Stewardship
How the vendor handles protected health information across the AI lifecycle, including use in training, retention, and de-identification, along with safety engineering disclosures such as guardrails, hallucination mitigation, and safety event reporting.
How the whole index grades on this axisHIPAA and BAA Posture
Business Associate Agreement availability, the tier at which the BAA applies, and subprocessor disclosure. The specific BAA tier fact is recorded in the vendor pricing record; this axis grades the overall posture and disclosure quality.
How the whole index grades on this axisSecurity Certifications and Trust Center
SOC 2 Type II, HITRUST, and ISO 27001 status, verified through public trust centers wherever possible, along with security incident disclosure practices.
How the whole index grades on this axisFDA and Regulatory Status
Whether the product is FDA cleared or authorized as a Software as a Medical Device, operating under enforcement discretion, or positioned as non-device clinical decision support, verified against the FDA public databases. Grades clarity and appropriateness of regulatory positioning, not possession of clearance; products for which clearance is not applicable are not penalized.
How the whole index grades on this axisAI Governance and Bias Disclosure
Substantive responsible AI commitments: published model cards, decision support transparency attributes for EHR-embedded tools, bias and fairness evaluations with stated methodology, third-party AI audits.
How the whole index grades on this axisAI Liability and Recourse
What happens when the system is wrong, and who can do anything about it. Whether an error rate is published with its method and denominator rather than an unfalsifiable claim of accuracy, whether limitations and abstention behaviour are stated, and whether any warranty, indemnity or remediation commitment attaches. The axis weighs the route available to the affected person, who in much of this market is a patient or a clinician rather than the customer, and who frequently has no way to learn a determination was made about them at all.
How the whole index grades on this axisEHR and Interoperability Depth
Integration maturity with major EHR systems: native workflow embedding, SMART on FHIR applications, HL7 interfaces, or standalone operation, verified against EHR marketplace listings and integration documentation where available. For lanes where EHR integration is not the relevant surface, the axis is assessed against the relevant surface or marked not applicable.
How the whole index grades on this axisDeployment Model and Data Residency
Documented deployment options (cloud, virtual private cloud, on-premises) along with United States data residency commitments and tenant isolation disclosures.
How the whole index grades on this axisCommercial Transparency
Whether a buyer can learn what the product costs and how it is priced without a sales engagement: published tiers, published pricing basis, self-serve trial availability. Specific figures are recorded in the vendor pricing record, with estimates labeled as estimates. Vendors that publish no pricing are recorded as Contact the vendor and graded on what a prospective buyer can establish before making contact; a failing grade is reserved for published pricing claims contradicted by evidence.
How the whole index grades on this axisSetting and Specialty Coverage
Clarity about where the product is validated to operate (ambulatory, inpatient, emergency, behavioral health, post-acute, home) and specialty coverage where relevant. Narrow coverage clearly stated grades well; the measure is clarity and validation, not breadth.
How the whole index grades on this axis