Promptfoo Acquired by OpenAI — Technology M&A

OpenAI has completed the acquisition of Promptfoo, a enterprise software business in the AI testing and evaluation space, for $23.6 million. OpenAI acquires Promptfoo to expand security and testing capabilities for large language model and generative AI applications used by enterprise teams. Promptfoo provides an open-source command-line interface and library for red-teaming, prompt evaluation, and automated vulnerability testing against AI agents and production deployments, including prompt injection, jailbreak, and data leak scenarios. The Promptfoo acquisition is an add on acquisition under technology M&A, with OpenAI acquisitions framed as a strategic acquisition to improve systematic evaluation, risk detection, and compliance documentation for AI agent workflows.