The Q/A Layer for the AI Coding Era

ℹ️ EPISODE INFO

Released

March 23, 2026

Duration

33m

Channel

YC Root Access

Watch on YouTube

▶ Open ↗

📝 EPISODE DESCRIPTION

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. https://momentic.ai Apply to Y Combinator: https://www.ycombinator.com/apply Work at a startup: https://www.ycombinator.com/jobs

🎤 SPEAKERS

• Harj Taggar

  host

  Host of YC Root Access who interviews founders about their products and engineering practices.

• Weiwei Wu

  guest

  Co-founder of Momentic, discussing AI-era QA/testing workflows and the company’s product roadmap.

• Jeff An

  guest

  Co-founder of Momentic, sharing perspectives on scaling testing and developer workflows in the AI coding era.

🧾 EPISODE SUMMARY

In this episode of YC Root Access, featuring Harj Taggar and Weiwei Wu, The Q/A Layer for the AI Coding Era explores momentic positions functional testing as verification layer for AI coding Momentic provides an AI-driven functional testing platform that impersonates real users in a browser to ensure critical user flows don’t break, processing over a million test runs per day for customers like Notion and Quora.

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