USMLE Step 1
Your all-in-one resource for USMLE® Step 1 prep
Understand every concept with a Qbank and medical Library that work as one. From your first block to dedicated, track how close you are to passing and see what to study next.
2,840+
Step 1 practice questions, written and reviewed by physicians
10.4 points higher
Students who used AMBOSS as their primary Qbank scored higher on Step 2 CK
2 out of 3
US medical students use AMBOSS to prepare for their exams

The AMBOSS difference
What makes AMBOSS different for Step 1
Exam-style practice
Questions that teach as they test
Practice with vignettes that match the length, format, and reasoning of the real Step 1, written and reviewed by physicians. Every explanation comes with didactic tools, such as Key Info and Attending Tip to steer your reasoning, and labeled image overlays, so each question teaches you something beyond just telling you the answer.

Exam-style practice
Deeper learning
Learn the concept behind every answer
Behind each question is the article that explains it, so you understand why an answer is right or wrong, not just which one it was. Go as deep as you need, then start a Qbank session right from the article to make it stick.

Deeper learning
Adaptive practice
Practice built around your weak areas
Adaptive Qbank Sessions choose questions on the topics you need to work on most, weighted by how much each one matters for Step 1, with difficulty rising as you improve.

Adaptive practice
Continuous progress
Your Step 1 progress carries into Step 2 CK, so you never start from zero
Every question you answer builds a profile of what you know and what you don't. Switch your study objective, and it goes with you to the next exam: your readiness estimate, adaptive sessions, and study recommendations.

Continuous progress
Readiness
Am I ready to pass Step 1?
You'll know how ready you are at every stage: while you study, after a timed Self-Assessment, and once your practice scores are in.



See your probability of passing from question #40 on
Your Equated Percent Correct weighs every question you answer by how hard it was and how much it matters for Step 1, then turns that into a passing probability and a predicted three-digit score. It moves with you, session by session.
Take a timed Step 1 Self-Assessment
The Step 1 Self-Assessment is 160 questions, timed, in the NBME format. Afterward, you get a score, your passing probability, and a report that tackles each weak area with a reading list and Qbank session.
Combine your practice scores into a prediction
Add your NBME forms, the Free 120, and your Self-Assessment to the Score Predictor whenever you have them. It combines them into a predicted score with a range and a passing probability, accurate to within 7 to 10 points of the real result.
Study guidance
What to study for Step 1, and in what order
Knowing where you stand is half of it. AMBOSS guides you to what's worth your time next.
Peer Voices
What Step 1 students say
FAQ
Your Step 1 questions answered
AMBOSS has 2,840+ Step 1 questions, written and reviewed by physicians and mapped to the NBME content outline. These are part of the AMBOSS USMLE Qbank of 5,800+ questions. AMBOSS membership (with a Qbank add-on) includes access to all questions, including Step 2 CK, the Shelf exams, and Step 3, meaning you can access them all without a second purchase.
The AMBOSS Qbank, library and study plans cover the full Step 1 outline. The platform shows you your probability of passing as you go, so you're not left guessing. Most students combine AMBOSS with their coursework and, in the last few weeks, NBME practice forms. The Score Predictor is designed to take those results in alongside your AMBOSS data.
Some are, by design. Each question carries a one-to-five hammer rating, from foundational to well above exam level, and you can decide how hard a custom session runs. Length, format, and reasoning style match the real exam throughout.
As early as possible! Many students are already prepping for Step before dedicated. AMBOSS questions are written in Step style, so if you’ve been using AMBOSS to test yourself on in-house exam concepts, you have a head start.
As a bonus, every question you've answered has been building your Equated Percent Correct, so you'll already have a clear picture of your strong and weak topics when you switch your study objective to Step 1.
If your Step date is soon, we recommend you try the ‘Step 1 Prep Condensed’, which guides you through 30 Step topics in 30 days, or ‘200 Concepts that Appear on Every Step 1 Exam’.
Yes. The Step 1 Self-Assessment is 160 timed questions in the NBME format. At the end, you receive a three-digit score, your probability of passing, and a report that links each weak area to Qbank sessions and library articles you can use to tackle it. Self-Assessments are included at no extra cost for Student Life members, or $49.99 to buy on its own.
Yes. The same Qbank and Library serve your in-house exams, filtered by system, subject, or your school's curriculum. See how AMBOSS works for preclinical courses.
Yes. Every question you answer builds a profile of what you know, and it stays with you when you change your study objective. Your Equated Percent Correct is recalculated for Step 2 CK from what you've already answered, and your adaptive sessions and study recommendations pick up from there.
Use the study objective switch at the top of your dashboard and choose USMLE Step 1. It decides what Key Exam Info highlights in the Library and what your Equated Percent Correct predicts, and you can change it any time as your target changes.




