Mentalyc vs Nudge AI (2026)
Two behavioral health documentation platforms, one aimed at therapists and one at the whole prescribing and therapy roster. Mentalyc has the stronger paperwork, with a typed attestation, certification against a Canadian provincial regime as well as the United States rule, and the most flexible input model in the category since a note can come from a recording, a dictation or a typed summary. Nudge covers more clinician types and reaches into level of care documentation, which is where behavioral authorisation is actually decided, with named controls and a free trial. The thing to press Nudge on is its own language about identifying billing opportunities, because in this specialty documentation determines what care gets authorised, and a tool tuned to find more of it is not the same as one tuned to describe the patient.
- Coverage spans the clinician types who actually practise behavioral health, psychiatrists, psychologists, therapists, counsellors and psychiatric nurse practitioners, reaching into level of care documentation.
- Three named controls are published including one close to unique in this index, and business associate agreements are supported with the qualification stated.
- A genuine free trial with five notes and no credit card lets a clinician test the output before any commitment.
- The compliance position is the strongest of any behavioral vendor here, with a typed attestation and certification against a Canadian provincial regime as well as the United States rule.
- Notes can be produced from recordings, uploads, dictation, transcripts or typed summaries, which fits clinicians whose clients will not consent to recording.
- Published tiers from a solo plan upward mean the cost is knowable and the entry point genuinely small.
This comparison is published by AI Health Index, an independent research platform that compares healthcare AI vendors objectively. Mentalyc and Nudge AI 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 | Mentalyc | Nudge AI |
|---|---|---|
| Primary category | Behavioral Health AI | Behavioral Health AI |
| Headquarters | New York, New York, United States | Not recorded |
| Website | mentalyc.com | getnudgeai.com |
Side by Side
Each record in one paragraph
Written to be quoted whole. Each paragraph states what the AI Health Index verified about the vendor, with the caveats attached. Generated from this pair’s live capability grades, so it moves when a grade moves.
The AI Health Index awards Mentalyc its top capability grade on several axes, including AI Centrality, AI Safety and PHI Stewardship and HIPAA and BAA Posture. Set against Nudge AI, Mentalyc grades higher on several axes, including Autonomy and Oversight Model, Model Supply Chain Disclosure and AI Safety and PHI Stewardship. Its thinnest published disclosure sits on AI Liability and Recourse. Grades reflect evidence the AI Health Index could verify at the last review, so a low grade records disclosure the vendor has not published rather than a capability it has been shown to lack.
Source: AI Health Index, August 2026
The AI Health Index awards Nudge AI its top capability grade on AI Centrality. Set against Mentalyc, Nudge AI grades higher on AI Liability and Recourse and EHR and Interoperability Depth. Its thinnest published disclosure sits on Model Supply Chain Disclosure. Grades reflect evidence the AI Health Index could verify at the last review, so a low grade records disclosure the vendor has not published rather than a capability it has been shown to lack.
Source: AI Health Index, August 2026
Questions buyers ask
Should we choose Mentalyc or Nudge AI?
On the axes where the AI Health Index separates them, Mentalyc grades higher on several axes, including Autonomy and Oversight Model, Model Supply Chain Disclosure and AI Safety and PHI Stewardship, and Nudge AI grades higher on AI Liability and Recourse and EHR and Interoperability Depth. Mentalyc leads on the greater share of scored axes, but the split means the decision turns on which constraint is binding rather than on an overall winner.
Where do Mentalyc and Nudge AI differ most?
The widest separation the AI Health Index records between Mentalyc and Nudge AI is on Security Certifications and Trust Center, where Mentalyc grades A and Nudge AI grades C. That axis sits in the Regulatory and Compliance group, so it should carry the most weight for a buyer whose binding constraint is where regulatory exposure sits and who carries it.
Where do Mentalyc and Nudge AI grade the same?
The AI Health Index grades Mentalyc and Nudge AI the same on several axes, including AI Centrality, Model and Technology Transparency and Clinical and Operational Evidence. Neither holds an advantage the index can evidence on those axes, so they should not carry weight in a selection between these two.
What have Mentalyc and Nudge AI not disclosed?
At the last review, at least one of Mentalyc and Nudge AI published thin or absent detail on Model Supply Chain Disclosure and AI Liability and Recourse. The AI Health Index treats an absent disclosure as a gap in the public record rather than a failure of the product, so these are the axes to get in writing during diligence instead of inferring from the grade.
Related comparisons
Other published head to head assessments involving these vendors or their closest peers. The full set for this category is on the Ambient Scribes page.
Neither vendor publishes an accuracy figure, model card or evaluation methodology, and neither publishes a subgroup analysis, which matters in this population because medication effects on speech compound accent and dialect variation. Nudge describes identifying billing opportunities in its own language, which places it on the coding gradient in a specialty where level of care documentation determines authorisation, so ask what proportion of its suggestions survive payer review. Recorded psychotherapy carries protections beyond the general health privacy rule in many jurisdictions and neither publishes a full retention position.