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Differential Generator

Build the differential your attending was hoping for.

Describe the presentation, get a prioritized differential in three tiers: must-not-miss, most likely, and worth considering, each grounded in your patient’s actual data, plus a targeted workup.

10 free generations, no card. Then $10/month for unlimited. Cancel anytime.

The tool

What Differential Generator does

The dreaded rounds question is not "what does the patient have." It is "what is your differential," followed by silence while you try to rank ten diagnoses in your head. The Differential Generator turns any presentation, from dyspnea with orthopnea to painless jaundice, into a structured, prioritized differential built the way internists actually think.

Give it the chief complaint and HPI, plus whatever vitals, exam findings, and labs you have. It returns three tiers: the must-not-miss diagnoses that would harm the patient if delayed, with exactly what it takes to rule each out; the most likely diagnoses ranked by probability, with the specific features from your patient supporting and arguing against each; and the less likely diagnoses worth keeping on the list.

It closes with a clinical summary that connects the dots and a workup list split into send-now, send-with-admission, and consider-if-negative, each test justified against this specific patient. Then you can push further: drill one diagnosis, add new data, or ask it to pimp you on the case.

How it works

Three steps. No prompt engineering.

  1. Describe the presentation

    Chief complaint and HPI, plus any vitals, exam findings, labs, or imaging you already have. Partial data is fine.

  2. Get the tiered differential

    Must-not-miss, most likely, and less likely diagnoses, each with what fits, what confirms, and what rules out.

  3. Order the workup

    A targeted test list with a one-line justification per test, prioritized by what needs to go now.

FAQ

Frequently asked questions

How is the differential organized?

Three tiers: must-not-miss diagnoses with explicit rule-out criteria, most likely diagnoses ranked with supporting and opposing features from your patient, and less likely diagnoses with one line on what would move them up.

Does it explain the reasoning or just list diagnoses?

It reasons out loud like an attending on rounds: why each diagnosis fits this patient, which findings argue against it, and how the pieces connect. The goal is teaching you the framework, not handing you a list.

Can I update it when new results come back?

Yes. Feed it the new troponin, the CT read, or the culture result and it re-ranks the differential and tells you what changed.

Is this meant for real patient care decisions?

No. It is a learning and prep tool for students and trainees. Clinical decisions belong to the licensed team caring for the patient.

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