Coding

CRUXEval

by Meta AI (FAIR) & collaborators

What is CRUXEval? CRUXEval is a coding eval made by Meta AI (FAIR) & collaborators. 800 short Python functions, each with an input-output pair. The model either predicts the output from the input (CRUXEval-O) or finds an input that yields the output (CRUXEval-I), so it measures reading and executing code rather than writing it.

Page last updated 2026-10-18 · Evals Review

Editor note

800 short Python functions, each with an input-output pair. The model either predicts the output from the input (CRUXEval-O) or finds an input that yields the output (CRUXEval-I), so it measures reading and executing code rather than writing it.

What it tests
Code reasoning and mental execution.
Original source
crux-eval.github.io
Last updated
Repo last push 2024-10-11
License
MIT

Facts come only from the linked source (checked 15–16 Oct 2026). Credit belongs to the creators. We don't score or rank evals: how we review.

Reviews

No reviews yet.

Reviews are written by people who sign in with GitHub, one per account per eval. We can't confirm that each reviewer used the eval; we remove reviews that break our rules, never just for being negative, and we never add, buy or edit reviews. Averages, when shown, come only from these reviews.

Sign in with GitHub to review

Related coding evals

All Coding evals · Comparison table

Discussion

No one has discussed CRUXEval yet. Have you run it? Share what it caught, what it missed or how you set it up.

Sign in with GitHub to comment

Be specific and kind. No promotion or affiliate links. Community rules · All discussions