OpenAI Strengthens Frontier Security With Acquisition of AI Security Startup, Promptfoo
In Focus
- Promptfoo brings security and governance capabilities to OpenAI
- OpenAI will integrate Promptfoo’s security technology into the Frontier platform
- The AI developer plans to expand Promptfoo’s open-source framework
OpenAI has acquired an AI security startup called Promptfoo. According to Gadgets360, Promptfoo protects large language models from online attacks. Following the acquisition, OpenAI’s Promptfoo acquisition paves the way for the AI developer to integrate security technology into its Frontier enterprise platform. Frontier is designed to simplify development, deployment, and management of AI agents in companies
Promptfoo Offers AI Testing Framework
Founded in 2024, Promptfoo provides an open-source framework and a command-line interface (CLI) tool. The AI testing framework developed by Promptfoo allows users to test, evaluate, and red-team LLM applications. The tool is hosted on GitHub under a permissive MIT license that supports academic and commercial use.
“We started Promptfoo because developers needed a practical way to secure AI systems. As AI agents become more connected to real data and systems, securing and validating them is more challenging and important than ever. Joining OpenAI lets us accelerate this work, bringing stronger security, safety, and governance capabilities to the teams building real-world AI systems,” Promptfoo CEO and Co-founder Ian Webster noted.
OpenAI acquired Promptfoo weeks after it partnered with four consulting firms to roll out its Frontier enterprise AI platform to enterprises. The partnership pairs consulting firms with forward-deployed engineers to train staff in companies and support the implementation of AI agents.
Deal Highlights Need for Safe AI Deployment
OpenAI’s Promptfoo deal shows how leading AI labs are racing to demonstrate that their technology can be deployed safely in critical business operations. By integrating Promptfoo’s AI security platform into Frontier, OpenAI brings security testing tools to its Frontier platform.
This move will enable businesses to identify and solve risks such as data leaks and abuse of AI tools. Promptfoo’s security testing tools also address prompt injections, which OpenAI said will continue to be a major risk.
“Promptfoo brings deep engineering expertise in evaluating, securing, and testing AI systems at enterprise scale. Their work helps businesses deploy secure and reliable AI applications, and we’re excited to bring these capabilities directly into Frontier.” OpenAI’s CTO for B2B Applications, Srinivas Narayanan stated.
The emergence of AI agents that can complete digital tasks has highlighted potential productivity gains for enterprises. However, this opportunity also presents new security risks because bad actors can access sensitive data or manipulate automated systems.
What is OpenAI’s Future Plan?
OpenAI plans to expand Promptfoo’s open-source offering. The AI developer also plans to develop evaluation tools that can identify, investigate, and address risks posed by agents within workflows.
These tools will provide reporting and traceability so that organizations that build AI agents on Frontier can document testing, track changes, and effectively comply with governance and risk management requirements.
Promptfoo says that currently, 25% of Fortune 500 companies are using its AI security products. Since its establishment, the AI startup has raised $23 million and was valued at $86 million as of July 2025.
