Promptfoo
Last verified 2026-05-14. JSON
The funding figures on this page are attributed, not sourced: a publisher is on record but no document URL is. How we mark provenance.
| Total raised | $23.0Mattributed |
|---|---|
| Latest round | series-a, $18.4M, 2025-07-01attributed |
| Founded | 2024 |
| Headquarters | San Francisco, US |
| Industry | ai security |
| Stage | series-a |
| Website | promptfoo.dev |
Open-source AI red-teaming and security testing platform for LLM applications
Funding rounds
| Date | Round | Amount | Lead |
|---|---|---|---|
| 2025-07-01 | series-a | $18.4M | a16z |
Detected tech stack
Cloudflare, Paper.js, Docusaurus 3.10.0, Cloudflare Browser Insights, web-vitals, Python, Ruby on Rails, Vue.js, React, Webpack, PHP
Provenance
| Fact | Status | Basis |
|---|---|---|
| Series A, $18.4M | attributed | vc-portfolio named as publisher. No document URL on file. |
| Total raised $23.0M | attributed | vc-portfolio named as publisher. No document URL on file. |
| Company existence | self-reported | promptfoo.dev, read 2026-05-14 |
| Description | self-reported | promptfoo.dev, read 2026-05-14 |
Nothing on this page is sourced yet. A sourced fact links to a document that states it.
Change history
No change recorded since records began on 2026-09-24.