AI Tools Directory

November 8, 2023

Introducing Promptfoo: Your AI-Powered Tool for LLM Quality Testing

Are you tired of manually testing and evaluating the quality of your Large Language Models (LLMs)? Look no further! Promptfoo is here to make your life easier. This AI-powered tool is designed to help you iterate on LLMs faster and catch regressions so that you can deliver top-notch user experiences.

How Promptfoo Works

Promptfoo offers a simple and efficient process to test and evaluate LLMs:

1. Create a list of test cases

  • Use a representative sample of user inputs to reduce subjectivity when tuning prompts.

2. Set up evaluation metrics

  • Utilize built-in metrics, LLM-graded evals, or define your own custom metrics to assess the performance of your models.

3. Select the best prompt & model

  • Compare prompts and model outputs side-by-side with ease, or seamlessly integrate the library into your existing test/CI workflow.

Promptfoo also offers a user-friendly web viewer and a command line interface to ensure that you have the flexibility to use it in a way that suits your needs.

Why Choose Promptfoo?

- Trusted by LLM Apps Serving Over 10 Million Users

Since promptfoo is already being used by LLM apps serving millions of users, you can trust that it delivers results and meets the needs of real-world applications.

Pros and Cons of Promptfoo


  • Streamlines the process of testing and evaluating LLMs
  • Reduces subjectivity and improves prompt tuning
  • Offers flexibility with built-in metrics and custom evaluation options
  • Trusted by a large user base


  • May require a learning curve for those new to LLM testing and evaluation
  • Limited information available on specific use cases and success stories

Get Started with Promptfoo

If you’re ready to take your LLM testing and evaluation to the next level, visit the Promptfoo Documentation to explore how you can get started. Whether you are running benchmarks, evaluating factuality, or minimizing hallucinations, Promptfoo has got you covered.

Join the Promptfoo Community

If you have questions, want to share your experiences, or simply want to connect with other Promptfoo users, join the community on GitHub and Discord.

Don’t let the quality of your LLMs be a headache. Try Promptfoo today and experience the difference it can make in your development process!

Similar AI Tools