Guillermo Rauch says end product matters more than the engine

Guillermo Rauch, co-founder of Vercel, says "What matters is the end product, whether it's a game or an engine" in an X reply dated October 17, 2026.

He is responding to Tim Sweeney, founder of Epic Games, who wrote that AI now handles about 70% of the routine code typing he did while building Unreal Engine 1, leaving programmers free for harder problems. Rauch's post is a short remark in reply to Sweeney's claim, and the report does not include any further detail on the figure or the work involved.