OpenAI announced plans to acquire Promptfoo on March 9, 2026. The company says Promptfoo’s security testing and evaluation technology will be integrated into OpenAI Frontier so enterprises can test and document risks such as prompt injection, jailbreaks, data leaks, and tool misuse earlier in the development cycle.
OpenAI said on March 9, 2026 that it plans to acquire Promptfoo. The company said Promptfoo's technology will strengthen agentic security testing and evaluation inside OpenAI Frontier, while Promptfoo remains open source under its current license and existing customers continue to receive support.
On March 9, 2026, OpenAI said it plans to acquire Promptfoo and integrate its AI security tooling into OpenAI Frontier. The move pushes security testing, red-teaming, and governance closer to the default workflow for enterprise agents.
OpenAI says it plans to acquire Promptfoo and bring its evaluation, red-teaming, and traceability tooling into OpenAI Frontier. Promptfoo's open-source project will stay under its current license, and the deal remains subject to customary closing conditions.
OpenAI said it will acquire Promptfoo and fold its security and evaluation stack into OpenAI Frontier. The company said Promptfoo will remain open source and current customers will continue to receive support.
OpenAI said on X on March 9 that it plans to acquire Promptfoo, an AI security platform, and keep the project open source. The deal strengthens OpenAI Frontier’s agentic testing and evaluation stack.