Promptfoo

This innovative tool is designed to help you create better prompts for your language models (LLMs). It empowers you to test and evaluate different prompts, ensuring your LLM delivers the highest quality output.

Highlights

• Reduces subjectivity when fine-tuning prompts by letting you create a list of test cases based on real user inputs.
• Gives you powerful built-in metrics and the ability to define your own, allowing you to thoroughly evaluate your prompts.
• Enables side-by-side comparison of prompts and model outputs, helping you choose the best option for your needs.

Key Features

• Seamlessly integrates with your existing testing or continuous integration (CI) workflow.
• Provides both a web viewer and a command-line interface, offering flexibility in how you interact with the tool.
• Trusted by LLM applications serving millions of users, demonstrating its reliability and popularity in the AI community.