Built by students,
for students.

Trained on olympiad material

To push difficulty to the top end, the model was also trained on IMO, BMO and Physics Olympiad problems. Higher-difficulty questions draw on this to produce genuinely hard, multi-step problems.

Automatic answer verification

Every generated question goes through an automated post-verification step that independently solves the problem and checks the result matches the provided answer key. Questions that fail are discarded and regenerated.

Worked solution coherence check

A second verification pass checks that the worked solution is logically consistent with both the question stem and the correct answer. This catches cases where the solution explains a different route to the right answer.

Distractor explanations

After answering, hover any wrong option and click "Why?" — the AI explains the specific misconception or reasoning slip that leads someone to choose it. Generated once, stored permanently, available instantly to every student who encounters that question.