Heidi Health vs TORTUS (2026)
Both are strong on governance, and they show it in different ways. Heidi shows how the organization is run, holding ISO 42001 for AI management, ISO 27001, ISO 9001 and a SOC 2 Type II across all five trust services criteria, with residency set by region and published prices from a free tier. TORTUS shows how the system behaves, publishing a hallucination removal rate, a peer reviewed reduction in major hallucinations and an error ontology built from clinician labeled transcripts, and in June 2026 it was certified as a UKCA Class IIa medical device by a UK Approved Body. For an NHS organization, TORTUS is built for that setting. Anywhere else, Heidi is the practical choice, since it reports use in more than 190 countries while TORTUS's evidence sits inside the NHS.
- Heidi reports use in 110 languages across more than 190 countries, with residency set by region, US data held for US users and Canadian information stored only in Canadian data centers.
- The price is set for an individual clinician, from a free tier to Clinician at $110 per user a month billed annually, while TORTUS's published price is for whole NHS trusts at £200,000 a year for up to 100,000 hours of audio.
- Its certifications cover how the organization is run, with ISO 42001 for AI management, ISO 27001, ISO 9001 and a SOC 2 Type II scoped to all five trust services criteria, privacy included.
- TORTUS measures its own errors and publishes them, removing 92.7 percent of detected hallucinations before the clinician sees the draft, with a 75 percent reduction in major hallucinations reported in npj Digital Medicine.
- Accent performance was tested by the deploying hospital, with Great Ormond Street Hospital stating publicly that its evaluation covered a wide variety of accents.
- The settings run from ambulance clinical hubs and emergency departments to outpatients, general practice and pediatrics, across more than 2.5 million consultations.
This comparison is published by AI Health Index, an independent research platform that compares healthcare AI vendors objectively. Heidi Health and TORTUS 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 | TORTUS |
|---|---|---|
| Primary category | Ambient Scribes | Ambient Scribes |
| Founded | Not recorded | 2022 |
| Headquarters | Melbourne, Australia | London, United Kingdom |
| Website | heidihealth.com | tortus.ai |
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.
Source -
Pricing / packaging
Heidi restructured its pricing in February 2026 and moved upmarket.
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, August 2026
TORTUS is a UK clinical AI company built around NHS deployment, with over 2.5 million consultations recorded across ambulance clinical hubs, emergency departments, outpatients and general practice, the last through the X-on partnership. Its OSLER agent combines voice, vision and click based interaction to read screen context and act inside the record rather than only writing to it, generating notes, referral letters and coding for clinician approval.
Source: AI Health Index, August 2026
Questions buyers ask
How do Heidi Health and TORTUS 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.
General practice is reached through the X-on Health partnership, where TORTUS powers Surgery Intellect, which works with X-on's Surgery Connect telephony. OSLER can also operate a record system through its interface using vision and clicks, a route to breadth that does not wait for each record vendor to build an integration. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified August 4, 2026. No vendor pays for placement.
How are Heidi Health and TORTUS 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.
TORTUS Enterprise for NHS trusts costs £200,000 a year for up to 100,000 hours of audio processed, with unlimited user licenses across departments, then £2 an hour beyond that, and includes onboarding, site visits, template customization and a live reporting dashboard. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified August 4, 2026. No vendor pays for placement.
How do Heidi Health and TORTUS 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.
In TORTUS's case, the company states that no model is trained on customer data and no data is retained, gives patient audio retained at rest as zero by design, and its data processing addendum says transcriptions, summaries and letters are not stored in the system; deleted data is cryptographically erased. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified August 4, 2026. No vendor pays for placement.
Which settings and specialties do Heidi Health and TORTUS 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 TORTUS, the coverage is deep in the NHS and unevidenced elsewhere. From the AI Health Index, drawn from each vendor's own published materials and the regulatory record, verified August 4, 2026. No vendor pays for placement.
Related comparisons
Other published head to head assessments involving these vendors or their closest peers.
TORTUS does not claim HIPAA on its own material and publishes no business associate agreement; it sells under UK data protection law with a published data processing addendum. Heidi's EHR integration comes with its Teams plan, and its HIPAA page makes a business associate agreement available to every covered entity it works with, with no tier condition. An earlier version of this comparison said that agreement was gated by plan; that statement was corrected on 13 September 2026.
The same earlier version said TORTUS holds a self certified UKCA Class I registration and that Heidi publishes no accuracy figure. TORTUS holds UKCA Class IIa certification from a UK Approved Body, and Heidi's research team has published error results from 385 simulated visits and a 77 language synthetic speech study. Both statements were corrected on 10 October 2026. It also said TORTUS publishes no rates; its NHS trust price is on its G-Cloud 15 listing, corrected on 11 October 2026.