Heidi Health vs Nabla (2026)
Two scribes that grew up outside the US enterprise sales motion, and both publish their prices. Heidi is global and widening, with a free tier and published Clinician seats, compliance pages organized by jurisdiction with US data hosted in the US, Heidi Evidence for cited clinical questions and Heidi Comms for patient calls. Nabla is narrower and deeper in the record, with dictation and E/M coding suggestions beside the scribe, integrations with Epic, athenahealth, Oracle Health, NextGen, Greenway and Arya that write data back into the chart, and an independent randomized trial. If your failure mode is geography, a free starting point or a platform that extends past documentation, start with Heidi. If it is structured write back across several record systems with trial evidence behind it, start with Nabla.
- Heidi has a free tier and publishes its seat prices, with Clinician at $110 per user a month billed annually or $150 monthly, and Max seats and Teams above it.
- Compliance is set out jurisdiction by jurisdiction, with separate pages for HIPAA, Australia and New Zealand, Canada, the UK and GDPR, a trust center, and US data hosted within the United States.
- It reaches past documentation. Heidi Evidence answers clinical questions with citations from BMJ Group content, and Heidi Comms coordinates patient calls, bookings and follow ups.
- Nabla pulls visit context from Epic, athenahealth, Oracle Health, NextGen, Greenway and Arya and writes notes, diagnoses and vitals into the chart as structured data, where Heidi's push to chart comes with its Teams plan.
- Nabla cut time in notes by 9.5 percent against usual care in a UCLA Health randomized trial published in NEJM AI, where Heidi's published evidence is preprints by its own research team.
- Coding and dictation sit beside the scribe, with E/M and ICD-10 suggestions for outpatient primary care and dictation inside Epic Hyperdrive and Hyperspace.
This comparison is published by AI Health Index, an independent research platform that compares healthcare AI vendors objectively. Heidi Health and Nabla 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 | Heidi Health | Nabla |
|---|---|---|
| Primary category | Ambient Scribes | Ambient Scribes |
| Founded | Not recorded | 2018 |
| Headquarters | Melbourne, Australia | Paris, France |
| Website | heidihealth.com | nabla.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.
Heidi Health
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Clinical evidence
Heidi Health released an impact report analyzing five real-world pilots across Ontario, Canada, involving 333 active clinicians and over 111,000 documented patient visits.
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Pricing / packaging
Heidi restructured its pricing in February 2026 and moved upmarket.
Source
Nabla
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Product / capability
Nabla released version 2026-08-25 of its Core API.
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Pricing / packaging
Nabla appears to have withdrawn public per month pricing in favor of a demo and contract sales motion, particularly for organizations.
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.
Heidi is a global ambient AI scribe that generates structured clinical notes from the patient encounter. It reports more than 175 million patient interactions supported across more than 190 countries, and solutions are published for family medicine, specialists, nurses, mental health, allied health, dentists, veterinarians and trainees.
Source: AI Health Index, July 2026
Nabla sells an ambient AI assistant that listens to the visit and drafts a structured clinical note, together with dictation and E/M coding suggestions, to health systems, medical groups and individual clinicians. The company reports more than 85,000 clinicians across more than 130 health organizations and more than 20 million patient encounters a year.
Source: AI Health Index, July 2026
Questions buyers ask
How do Heidi Health and Nabla work with the EHR?
For Heidi Health, the Teams integrations reach the main hospital and ambulatory systems. For Epic, Heidi describes ambient documentation, structured writeback and clinical task automation across Hyperspace, Hyperdrive and Haiku.
Nabla pulls patient history and visit context from the EHR, exports structured notes into EHR templates, and places vital signs, diagnoses and patient instructions into charts, flowsheets and clinical fields. The systems named are Epic, athenahealth, Oracle Health, NextGen, Greenway and Arya. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified July 22, 2026. No vendor pays for placement.
How are Heidi Health and Nabla priced and sold?
In Heidi Health's case, a Max seat carries five times the usage allowance of a Standard seat for agents and Routines, and costs $299 per user per month billed annually. Scribing and evidence questions never draw on that allowance, and Heidi says it never charges overages.
An individual clinician can sign up online, use the product free for 30 days, and then pay $119 a month, the rate Nabla's help center states. Organizations buying for many clinicians go through Nabla's team, and group rates are quoted on request, with no group price, volume tier or enterprise unit listed. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified July 22, 2026. No vendor pays for placement.
How do Heidi Health and Nabla handle patient data?
With Heidi Health, data is never used for secondary purposes such as model training or commercialization, and clinical data is never shared or sold. Identifiable details are removed from transcripts and notes and processed separately from the rest.
Audio is not stored by default, notes are kept for 14 days from the moment an encounter is created, and a customer can shorten that window, down to a few hours according to Nabla's French compliance page. On expiry the data leaves the application and remains only in backups, which expire seven days later. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified July 22, 2026. No vendor pays for placement.
Which settings and specialties do Heidi Health and Nabla cover?
For Heidi Health, the company reports around 2.8 million patient visits a week in 110 languages from 190 countries, and states coverage of more than 200 specialties.
With Nabla, customers range from individual practices to large health systems, and emergency and inpatient clinicians can document on mobile inside Epic. Nabla supports more than 35 languages, from English, Spanish and French to several Arabic dialects, Hindi, Mandarin and Haitian Creole. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified July 22, 2026. No vendor pays for placement.
Related comparisons
Other published head to head assessments involving these vendors or their closest peers.
Volume figures for both vendors are vendor published. Heidi's HIPAA page makes a business associate agreement available to every covered entity it works with, and Nabla requires one at sign up for any customer handling protected health information. An earlier version of this comparison said Nabla's free tier lacked that agreement and that Nabla trains on session data by default; neither traced to Nabla's own material. Both statements were corrected on 10 October 2026. Heidi restructured its pricing in February 2026, and Nabla charges $119 a month per clinician and quotes group rates.