OpenAI Acquires Promptfoo: Securing the Frontier

OpenAI has officially acquired Promptfoo, the leading open-source framework for testing and evaluating LLM security. This move signals OpenAI's aggressive push into Enterprise Agentic Security.

Native Red-Teaming

By integrating Promptfoo's automated evaluation tools directly into OpenAI Frontier, developers can now stress-test their "AI Coworkers" for prompt injection and data exfiltration vulnerabilities in real-time.

Importantly, OpenAI has committed to keeping the Promptfoo core CLI open source, ensuring the broader developer community maintains access to high-quality security primitives.