OpenAI is acquiring Promptfoo, an AI testing startup whose tools are used by over 25% of Fortune 500 companies to evaluate LLM applications against adversarial prompts, prompt injection, and jailbreak attempts. Promptfoo's technology will be integrated into OpenAI Frontier, its enterprise AI agent platform. The deal reflects growing enterprise demand for security and governance tooling as AI agents move from pilots to production. Analysts note that red-teaming and evaluation tools are becoming baseline requirements, with organizations adopting shift-left security practices for AI similar to traditional application security pipelines.
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