We’re acquiring Promptfoo.
Their technology will strengthen agentic security testing and evaluation capabilities in OpenAI Frontier. Promptfoo will remain open source under the current license, and we will continue to service and support current customers.
openai.com/index/openai-t…
We’ve raised an $18.4M Series A led by @insightpartners, with participation from @a16z, to build the best security stack for AI applications.
Promptfoo started a year ago as an open source project and is now the most widely adopted toolkit for reducing security, compliance, and brand risks in AI applications.
How it’s going + what’s next 🧵
AI is insecure by default.
The open secret is that most AI apps launch with serious flaws. It takes MORE time to secure these apps than it does to build them.
I learned this firsthand from shipping LLM agents to 200M users at Discord and supporting LLM evals for hundreds of companies.
It doesn’t have to be this way.
Today, we’re launching @Promptfoo, an open-source company that helps find and fix vulnerabilities in AI powered apps before they ship, and announcing a $5M seed round led by @a16z.
27 Followers 361 FollowingMontana-based startup building defensible workflows with LLMs. Current interests: ontology control layers, software factories, tres commas context club
0 Followers 16 FollowingTechnical product leader with a principal engineering background. I build things that work and open source the parts that might help others.
14 Followers 37 FollowingShip prompts & agent skills that hold up in production. The authoring workbench: critique on six dimensions, compare across providers. BYOK on every tier.
13K Followers 1K FollowingFounder of https://t.co/9KM4uFScMi, Associate Professor at Columbia. Making ai agent design and deployment easy, safe, and fast!
Forbes 30 under 30.