# Audit the grader and the judge

Lesson 3 of [Audit AI benchmark claims before you buy](https://aibenchmarkindex.com/academy/audit-ai-benchmark-claims.md), 18 minutes.

A score is only as good as the grader that produced it. Ask one question for every grader: would a superficial imitation pass? Deterministic graders - Exact match: check the normalization rules. Aggressive clean-up can hide real format failures. Strict matching can reject valid variants. - Unit test…

The rest of this lesson is for learners enrolled in the course. [See how Audit AI benchmark claims before you buy works](https://aibenchmarkindex.com/academy/audit-ai-benchmark-claims.md).

Also on the [web page](https://aibenchmarkindex.com/academy/audit-ai-benchmark-claims/audit-the-grader).