Promptfoo helps developers and enterprises build secure, reliable AI applications.

Promptfoo discovers and eliminates major LLM risks before they are shipped to production. Its founders have experience launching and scaling AI to over 100M users using automated red-teaming and testing to overcome security, legal, and compliance issues. Promptfoo's open-source, developer-first approach has made it the most widely adopted tool in this space, with over 20,000 users at companies like Shopify, Amazon, and Anthropic.