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, ...

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 ...

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 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 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 ...

The Microsoft-backed (MSFT) OpenAI (OPENAI) revealed plans today to acquire Promptfoo, a startup that helps enterprises identify and correct vulnerabilities during the development of artificial ...

OpenAI has announced the acquisition of Promptfoo, an AI security startup founded in 2024 and used by more than 25% of Fortune 500 companies. The terms of the acquisition have not been announced.

OpenAI has agreed to buy Promptfoo, a startup that helps large businesses find and fix security issues in artificial intelligence models. The acquisition will integrate Promptfoo's technology into ...