Overview
- OpenAI announced the purchase of Promptfoo, with financial terms undisclosed, and said the startup’s team will join the company.
- Promptfoo’s capabilities will be integrated into the Frontier platform to provide automated red‑teaming, agent workflow evaluation, risk monitoring, and built‑in reporting and traceability.
- The tooling targets threats including prompt injections, jailbreaks, sensitive data leaks, tool misuse, and out‑of‑policy behaviors in enterprise AI agents.
- Founded by Ian Webster and Michael D’Angelo, Promptfoo offers an open‑source CLI and library used by more than 25% of Fortune 500 firms and had raised about $23 million at a roughly $86 million valuation.
- OpenAI says it will continue developing Promptfoo’s open‑source project, while industry observers note questions about vendor neutrality and future cross‑provider interoperability.