Today we are announcing that Promptfoo has agreed to be acquired by OpenAI. Promptfoo will remain open source and we will continue to serve users and customers. We founded Promptfoo in 2024 to make it easy for developers to systematically test their AI applications. We quickly realized that adversarial tests for security, safety, and other behavioral risks were the biggest blockers to shipping AI, especially at large enterprises. What we built grew faster than we ever could have imagined. More t...