OpenAI announced Monday it has acquired Promptfoo, an AI security startup founded in 2024 to protect LLMs from online adversaries. The frontier lab said in a blog post that once the deal closes, ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. OpenAI announced its acquisition of Promptfoo, a startup whose open-source tools help ...

OpenAI Group PBC announced today that it plans to acquire testing and security evaluation platform for artificial intelligence applications startup Promptfoo Inc. for an undisclosed price. Founded in ...

(Bloomberg) -- OpenAI has agreed to buy Promptfoo, a startup that enables large businesses to find and fix security issues in artificial intelligence models during their development, part of a push to ...

Led by Insight Partners with participation from Andreessen Horowitz, funding will accelerate development of the widely adopted AI security testing solution SAN FRANCISCO, July 29, 2025 /PRNewswire/ -- ...

OpenAI on 9 March said it plans to acquire AI security startup Promptfoo to strengthen testing and evaluation tools for enterprise AI systems, as companies increasingly deploy autonomous AI agents in ...

OpenAI is acquiring cybersecurity startup Promptfoo. Promptfoo's team will join Sam Altman-led OpenAI, and its technology will be integrated into the Frontier platform for AI agents. Promptfoo ...

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