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.

Part of AI coding on eChai Explore.

On the AI map, 29 October 2026 Coding agents App builders

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Minimum Viable Product MRR

More in Vibe Coding

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Also in Starting Up

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

I'm non-technical, do I actually need a technical co-founder? 18 → I'm not a designer, how do I make my product not look terrible? 18 →
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