Companies / Data vendor
Promptfoo
Makes open-source and enterprise tools that red-team and evaluate AI applications, agents and models. Recorded here: what it sells, in its own words and 3 funding events.
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- No data upload
- About two minutes
- No email needed
promptfoo.devLatest record 9 Nov 2026
Also ranked #48 of 71 AI evaluation companies, on the rankings of the AI data market.
The badge always matches the ranking. Paste this where you want it shown:
<a href="https://aidata.broker/best/ai-red-teaming-companies#promptfoo"><img src="https://aidata.broker/badges/ai-red-teaming-companies/promptfoo" alt="Promptfoo: #9 of 18 AI red teaming and security companies on the AIData.Broker rankings" height="64"></a>
Promptfoo and its competitors, ranked. Compared head to head with Giskard.
What Promptfoo sells
In its own words, read on its own site 9 Nov 2026. On the vendor register
- What it sells
Evaluations and benchmarks: “Promptfoo simulates real users to uncover application-specific vulnerabilities” promptfoo.dev
- Where its data comes from
- Its pages do not say.
- Buys data from owners
- Its pages do not say it does.
- Areas its pages name
- Security
Funding and acquisitions
| When | Event | Amount | Source |
|---|---|---|---|
| 9 Mar 2026 | Acquired by OpenAI | Promptfoo, blog, 9 March 2026 | |
| 23 Jul 2024 | Seed | $5M | Promptfoo, 23 July 2024 |
| 29 Jul 2025 | Series A | $18.4M | Promptfoo, 29 July 2025 |
Cite this
AIData.Broker, “Promptfoo in the AI training data market”, reviewed 9 Nov 2026. https://aidata.broker/companies/promptfoo
Free to reuse under CC BY 4.0 if you credit AIData.Broker and link to this page. Each row names the publication that stated it, and words quoted from a source keep that source's own terms.