Promptfoo

Promptfoo is an open-source toolkit used by 100k+ developers to evaluate and secure their LLM applications. Founded by MIT researchers, we provide a comprehensive platform for LLM red teaming, guardrails, and model security. Our mission is to make LLM development safer and more reliable. We are backed by top investors and operate as a tight-knit team of experienced engineers, operators, and technical founders. With a focus on open-source innovation, we help developers build trustworthy AI applications while staying ahead of security threats and performance challenges in the rapidly evolving AI landscape. Our platform includes features like automated vulnerability scanning, benchmarking capabilities, and security-hardened templates to streamline the development of production-ready LLM systems. We believe in empowering developers with the right tools to navigate the complexities of large language model implementation while maintaining security and reliability standards across their applications.