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About Ai4RD
The tool

A second mind forthe rare cases.

Ai4RD is an AI assistant for rare diseases. It helps clinicians think through which conditions might fit, and helps patients put what they’re going through in order. It cites its sources wherever it can. The diagnosis always stays with a clinician.

How it thinks

Possibilities,not a diagnosis.

In Doctor mode, every full answer has the same shape: a short summary of the pattern, then three to five conditions to consider, ordered by how well the evidence fits. For each one, it says what argues against it, and what new evidence would change the picture.

The clinician makes the call. Ai4RD offers possibilities, not conclusions. It says things like fits, argues against and would raise concern for — never rule in or rule out.

What it reads

It shows its sources,so you can check them.

When a question is about a specific case, Ai4RD searches named sources: medical research, rare-disease databases, and guides written for patients. These searches stay inside those sites:

  • PubMed — the U.S. National Library of Medicine’s index of peer-reviewed medical research.
  • Orphanet — the reference database of rare diseases and orphan drugs.
  • NORD — the National Organization for Rare Disorders.
  • GARD — the NIH Genetic and Rare Diseases Information Center.

There is also a general web search, for questions those databases don’t cover. It isn’t limited to a list of sites. Ai4RD is told to use only trusted clinical and scientific sources there too, but that is an instruction, not a hard limit — so read those results as you would any web result. The Sources list always shows where a claim came from.

Every full answer ends with that list, so a clinician can check the reasoning against the research. If a search finds nothing, Ai4RD says so instead of inventing a reference.

Two modes

One tool,two ways to talk.

Doctor

Clinical detail.

Every full answer has the same parts: the clinical question, the reasoning, the conditions to consider, what evidence is missing, and what to ask next. Its answers draw on search. It never diagnoses or prescribes. It thinks alongside you, and you decide.

Patient

Plain language, calm pace.

It listens first and explains things in everyday words. It can help you put together a timeline, a list of symptoms, or questions for your doctor. It never puts a disease name to your symptoms, and it leaves anything important to your own healthcare professional.

Where it stops

Honest aboutwhat it is not.

  • It does not

    diagnose

  • It does not

    prescribe

  • It stores no conversation

    on a server

  • When the service is down

    it goes quiet

The fourth is the one most tools get wrong: it goes quiet rather than guessing.

Ai4RD does not diagnose. It does not prescribe. It does not store conversations server-side. It is a research preview that goes quiet when the upstream service is unavailable, rather than guessing.

Ai4RD is not a medical device. It is not FDA-cleared, CE-marked, or registered with any regulator, and it makes no diagnostic claim that would require clearance. It is not a HIPAA-covered service — do not enter protected health information. It supports a clinician’s own reasoning and is never a substitute for clinical judgment.

The full release is in development.

Ready when you are

Open Ai4RD.Try the preview.

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