Building & Product

How do real founders ship an MVP with AI in days instead of months?

The pattern is consistent: scope one core workflow, prompt a working prototype in hours, put it in front of 5-10 real users within days, and iterate on live feedback instead of specs. Pieter Levels built a flight simulator in 3 hours that hit $1M ARR in 17 days, and Karpathy shipped a paid app (MenuGen) without reading the code. The winners treat the MVP as a test of demand, not a finished product, and expect the messy 30% (auth, payments, polish) to take longer than the demo.

Go deeper

18 resources.

Terms in this answer

More in Vibe Coding

Also in Starting Up

The same ground, over in Build the product, our Starting Up track.

eChai Partner Brands The partnership →