OpenAI acquires Promptfoo to embed AI red-teaming and security testing directly into its Frontier agent platform, signaling that agent safety is now table stakes.

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 ...

Promptfoo raised $18.4 million in a Series A round in July 2025 led by Insight Partners with participation from Andreessen Horowitz, according to the company’s own announcement. Promptfoo said at the ...

OpenAI acquires Promptfoo to improve AI agent security, adding automated testing, red teaming, and risk monitoring tools to its enterprise Frontier platform.

OpenAI has acquired Promptfoo, an open-source AI red-teaming platform used by 25% of Fortune 500 companies, to build security into its Frontier agent stack.

OpenAI announced that it’s acquiring AI security company Promptfoo to enhance its Frontier platform with security testing capabilities.

OpenAI plans to acquire Promptfoo, a startup that helps businesses detect and fix security issues in AI models during ...

The acquisition points to rising demand for tools that test and secure LLMs before they are deployed in enterprise workflows.

OpenAI has announced the acquisition of Promptfoo, a company founded in 2024 to develop tools that identify vulnerabilities in large language models. OpenAI ...

OpenAI’s latest acquisition addresses a security need Jamieson O’Reilly, security advisor at OpenClaw, raised during an exclusive interview with Infosecurity ...

Promptfoo Inc., a broadly adopted open-source framework for artificial intelligence evaluation and testing, today announced it has raised $18.4 million in an early-stage funding led by global software ...