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OpenAI acquires Promptfoo to secure its AI agents

This deal underscores how frontier labs are scrambling to prove their technology can be used safely in critical business operations.

OpenAI will acquire Promptfoo, an AI security platform.

The tool, which OpenAI said is used by 25 percent of Fortune 500 companies, helps “identify and remediate vulnerabilities in AI systems during development.”

The open-source AI red-teaming tool used by Fortune 500 companies is now part of OpenAI

The acquisition of Promptfoo, which counts more than 125,000 developers and 30-plus Fortune 500 companies among its users, is OpenAI’s most direct move yet into AI application security. Its technology will go into Frontier, the company’s enterprise agent platform launched just a month ago.