Promptfoo

Raised $18.4M in a Series A round, announced 29 July 2025.

Latest round Series ACountry United StatesSector AI

Round

Builds out its AI security and evaluation stack.

Amount: $18.4M
Stage: Series A
Announced: 29 July 2025
Lead: Insight Partners
Other investors: Andreessen Horowitz
Use of funds: Builds out its AI security and evaluation stack.
Checked: Amount and date matched across 2 press sources
Sources: Promptfoo Raises $18.4 Million Series A to Build Definitive AI Security Stack - PR Newswire siliconangle.com
Promptfoo Raises $18.4 Million Series A to Build Definitive AI Security Stack prnewswire.com

Open-source framework for testing and red-teaming AI applications

How much has Promptfoo raised?

Promptfoo raised $18.4M in a Series A round, announced on 29 July 2025.

Who invested in Promptfoo?

Insight Partners led. Investors include Insight Partners and Andreessen Horowitz.