USMLE Step 1 · Foundations
The AI-verified Step 1 question bank.
Mechanisms and basic science with first- and second-order reasoning. Every answer is AI-consensus verified and cited to the literature, and reviewed by 50+ doctors across specialties.
7,114
Step 1 questions
100%
Cited to source
50+
Reviewing doctors
239
With clinical images
What's inside
Built for Step 1 — verified three ways.
Frontier-AI consensus
Every answer cross-examined by multiple reasoning models; agreement recorded, disagreements adjudicated.
Cited to the literature
A citation on every question — guidelines, StatPearls, PubMed — attached and linked.
Reviewed by 50+ doctors
Clinicians across specialties review the bank for quality and efficacy; per-question sign-off keeps growing.
PathologyPharmacologyPhysiologyMicrobiologyBiochemistryImmunologyGenetics
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