Promptfoo

An LLM prompt testing library.

CommonProductProductivityLLMprompt testing
Promptfoo is a library for evaluating LLM prompt quality and conducting testing. It helps you create test cases, set evaluation metrics, and integrate with existing testing and CI workflows. Promptfoo also offers a Web Viewer to easily compare different prompts and model outputs. It is used in LLM applications serving over 10 million users.
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