OpenAI Announces Acquisition of AI Security Firm Promptfoo to Bolster Enterprise Agent Safety
The acquisition follows other major moves by OpenAI in early 2026, including a strategic partnership with Amazon and a joint statement with Microsoft.
RMN Digital Corporate Desk
New Delhi | March 10, 2026
SAN FRANCISCO — March 9, 2026 — OpenAI has announced its intent to acquire Promptfoo, a leading AI security platform designed to help enterprises identify and remediate vulnerabilities in artificial intelligence systems. The move is aimed at accelerating the security, evaluation, and testing capabilities of OpenAI’s Frontier platform, which is used for developing and operating “AI coworkers” within professional workflows.
As businesses increasingly integrate AI agents into their core operations, the need for robust oversight and risk detection has become a foundational requirement. Once the acquisition is finalized, OpenAI plans to integrate Promptfoo’s technology directly into OpenAI Frontier. This integration will provide developers with native tools for automated red-teaming and security testing, helping to prevent issues such as prompt injections, jailbreaks, data leaks, and tool misuse.
Promptfoo, led by founders Ian Webster and Michael D’Angelo, has already established a significant footprint in the industry. Its tools are currently trusted by over 25 percent of Fortune 500 companies, and the team maintains a widely used open-source CLI and library for evaluating Large Language Model (LLM) applications. OpenAI has committed to continuing the development of these open-source projects alongside its integrated enterprise features.
“Promptfoo brings deep engineering expertise in evaluating, securing, and testing AI systems at enterprise scale,” said Srinivas Narayanan, OpenAI’s CTO of B2B Applications. He noted that the acquisition will allow OpenAI to build security directly into development workflows, making it easier for organizations to document testing and meet governance, risk, and compliance (GRC) expectations.
Ian Webster, Co-founder and CEO of Promptfoo, highlighted the growing complexity of securing AI as it becomes more connected to real-world data. “Joining OpenAI lets us accelerate this work, bringing stronger security, safety, and governance capabilities to the teams building real-world AI systems,” Webster stated.
The acquisition follows other major moves by OpenAI in early 2026, including a strategic partnership with Amazon and a joint statement with Microsoft. The closing of the Promptfoo deal remains subject to customary closing conditions.
