Promptfoo

This LLM Prompt Testing tool is a library for assessing and testing the quality of Language Model Mathematics (LLM) prompts. It allows users to ensure that LLM models produce high-quality results via automated evaluations.

The tool enables users to develop test case lists using representative user input samples, which aids in reducing subjectivity during prompt fine-tuning.

Users have the option to configure evaluation metrics, utilizing either the tool's built-in metrics or defining their own custom metrics. The tool also provides side-by-side comparisons of prompts and model outputs, helping users to identify the most suitable prompt and model for their particular requirements.

The library can be easily integrated into existing test or continuous integration (CI) workflows. The LLM Prompt Testing tool offers both a web viewer and a command-line interface, giving users the flexibility to interact with the library in their preferred manner.

Notably, this tool is trusted by LLM applications with over 10 million users, demonstrating its reliability and widespread adoption within the LLM community. Overall, the LLM Prompt Testing tool helps users evaluate and improve LLM prompt quality, enhance model outputs, and make well-informed decisions based on objective evaluation metrics.