Uploaded March 2026 | Updated September 2026, 2 weeks ago
OpenAI to acquire Promptfoo
github.com/promptfoo/promptfoo
We’re acquiring Promptfoo, an AI security platform that helps enterprises identify and remediate vulnerabilities in AI systems during development. Once the acquisition is finalized we will integrate Promptfoo’s technology directly into OpenAI Frontier, our platform for building and operating AI coworkers.
As enterprises deploy AI coworkers into real workflows, evaluation, security, and compliance become foundational requirements. Enterprises need systematic ways to test agent behavior, detect risks before deployment, and maintain clear records to support oversight, governance, and accountability over time.
The Promptfoo team, led by Ian Webster and Michael D’Angelo, has built a powerful suite of tools trusted by over 25 percent of Fortune 500 companies, along with a widely used open-source(opens in a new window) CLI and library for evaluating and red-teaming LLM applications. Together, we will continue building the open-source project while also advancing the integrated enterprise capabilities within Frontier.
❤️ If you want to support the channel ❤️
Support here:
Patreon - patreon.com/1littlecoder
Ko-Fi - ko-fi.com/1littlecoder
🧭 Follow me on 🧭
Twitter - twitter.com/1littlecoder
OpenAI to acquire Promptfoo
github.com/promptfoo/promptfoo
We’re acquiring Promptfoo, an AI security platform that helps enterprises identify and remediate vulnerabilities in AI systems during development. Once the acquisition is finalized we will integrate Promptfoo’s technology directly into OpenAI Frontier, our platform for building and operating AI coworkers.
As enterprises deploy AI coworkers into real workflows, evaluation, security, and compliance become foundational requirements. Enterprises need systematic ways to test agent behavior, detect risks before deployment, and maintain clear records to support oversight, governance, and accountability over time.
The Promptfoo team, led by Ian Webster and Michael D’Angelo, has built a powerful suite of tools trusted by over 25 percent of Fortune 500 companies, along with a widely used open-source(opens in a new window) CLI and library for evaluating and red-teaming LLM applications. Together, we will continue building the open-source project while also advancing the integrated enterprise capabilities within Frontier.
❤️ If you want to support the channel ❤️
Support here:
Patreon - patreon.com/1littlecoder
Ko-Fi - ko-fi.com/1littlecoder
🧭 Follow me on 🧭
Twitter - twitter.com/1littlecoder










