Why Your LLM Evals Are Lying to You

This article originally appeared in The Forward Pass, a weekly newsletter for ML engineers who ship. Get a free issue every month → Why Your LLM Evals Are Lying to You Three failure modes that make most LLM benchmarks decoration, not science. by Maxim Enis · 4 min read You ran your model on MMLU. The score went up. You shipped. A week later, the support tickets are different in shape but identical in volume. What happened? LLM evaluation is the most quietly broken part of the sta...