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 ...

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, ...

Being able to communicate well with AI language models is more and more important for anyone whether you are an individual, developer or businesses and relies on us creating specific prompts tailored ...

OpenAI is acquiring Promptfoo, a San Francisco-based AI security startup, in a move that signals how seriously the company is taking enterprise trust as it pushes deeper into agentic AI. The deal ...

Investment in start-ups involved with securing AI against cyber threats was a strong focus of cybersecurity M&A activity ...

Did our AI summary help? OpenAI has announced plans to acquire Promptfoo, an AI security platform focused on testing and evaluating artificial intelligence systems. The company said the acquisition ...

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 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 help corporate ...

OpenAI said it plans to acquire AI security startup Promptfoo to strengthen safety and evaluation capabilities for enterprise AI agents. The deal aims to integrate automated security testing into ...

Investing.com -- OpenAI announced plans to acquire Promptfoo, an AI security platform that helps enterprises identify and fix vulnerabilities in AI systems during development. The company said it will ...