Promptfoo – Milestones
Key milestones and important events in Promptfoo's history.
3
Total Milestones
2024
Earliest
2026
Latest
2 yrs
Span
Showing 3 milestones for Promptfoo
20261 milestone
3
1 Mar 2026
Acquired by OpenAI
OpenAI announced its acquisition of Promptfoo to integrate its security technology and bolster the safety of its enterprise-grade AI agent platforms.
openai.com/index/openai-to-acquire-promptfoo/20251 milestone
2
1 Jul 2025
Series A Funding Round
Raised $18.4 million in a Series A funding round led by Insight Partners, with participation from Andreessen Horowitz, reaching a valuation of $85.5 million.
www.cnbc.com/2026/03/09/open-ai-cybersecurity-promptfoo-ai-agents.html20241 milestone
1
1 Jan 2024
Promptfoo Founded
Promptfoo was founded by Ian Webster and Michael D'Angelo to create a platform for developers to systematically test and secure AI applications.
www.promptfoo.dev/blog/promptfoo-joining-openai/