How We Generate 300+ AI Business Ideas a Month With GPT-5 (and Filter the Junk Out)

Six months ago I shipped an AI quiz that matches aspiring founders to a business idea they can actually build. The matcher only works if the underlying idea library is large, fresh, and not full of slop. So I had to build the pipeline that fills it. This post walks through the real architecture: prompt design, the validation gate, the day it silently produced zero ideas for 48 hours, and what we'd cut if we started over. If you're building anything that uses LLMs to generate structured content at scale, you'll probably hit the same walls.