Home / AI red teaming & evals / Promptfoo
Promptfoo
Open-source CLI and platform for evals, red teaming and vulnerability scanning of LLM apps.
Open source + commercialAcquired / parent
| Category | AI red teaming & evals |
|---|---|
| Official site | www.promptfoo.dev/ |
| Maker | Promptfoo |
| Ownership / acquisition | OpenAI (acquisition announced Mar 9, 2026; closing not publicly confirmed) · source |
| License model | Open source + commercial |
| License | MIT |
| Public pricing | Not published / not yet verified |
| Source code | promptfoo/promptfoo |
| Last verified | 2026-10-17 |
Facts are taken from the vendor's own site, GitHub, or a linked public source. Blank means we could not confirm it, not that it does not exist. Vendors can request a correction for free.
Lab result
Not yet tested. When we test a tool we run our attack batteries (prompt injection, indirect injection, MCP tool poisoning and more) and publish the result here, good or bad.