AI Evals, Part 4: LLM-as-Judge, Done Right
This article details a method for using large language models (LLMs) as judges to evaluate AI outputs, particularly within the .NET ecosystem using Microsoft.Extensions.AI.Evaluation. It emphasizes the importance of treating evaluation as an AI feature itself, requiring robust parsing, failure-to-number scoring, and the use of a more capable model for judging than for generation. The post also highlights common biases in LLM judges, such as position and verbosity bias, and suggests mitigation strategies to ensure reliable and trustworthy evaluation scores. AI
IMPACT Provides a framework for reliable AI output evaluation, crucial for production AI development.