PromptLens guides
Practical LLM evaluation guides
Practical guides for building LLM evaluation datasets, scoring outputs, detecting regressions, and reviewing AI changes before release.
Evaluation guide
How to build an LLM evaluation dataset
Create a small, representative test set that exposes real LLM failure modes and stays useful as your application changes.
Evaluation guide
LLM-as-a-judge: a practical guide
Use a language model to score open-ended outputs with clear expectations, stable conditions, and reviewable reasons.