Uploaded March 2026 | Updated September 2026, 2 weeks ago
In this episode of Founder Firesides, YC Managing Partner Harj Taggar talks to Weiwei Wu and Jeff An, co-founders of Momentic (W24), who just raised a $15M Series A. Momentic is the verification layer for software — an AI-powered testing platform that impersonates end users to catch bugs before they ship. Powering companies like Notion, Quora, and Built with over a million test runs a day, they discuss why the explosion of AI-generated code makes testing more critical than ever and their vision for a future where engineers write specs, not code.
momentic.ai
Apply to Y Combinator: ycombinator.com/apply
Work at a startup: ycombinator.com/jobs
In this episode of Founder Firesides, YC Managing Partner Harj Taggar talks to Weiwei Wu and Jeff An, co-founders of Momentic (W24), who just raised a $15M Series A. Momentic is the verification layer for software — an AI-powered testing platform that impersonates end users to catch bugs before they ship. Powering companies like Notion, Quora, and Built with over a million test runs a day, they discuss why the explosion of AI-generated code makes testing more critical than ever and their vision for a future where engineers write specs, not code.
momentic.ai
Apply to Y Combinator: ycombinator.com/apply
Work at a startup: ycombinator.com/jobs
