I Tested 7 Free AI Startup Idea Validators — Most Are Useless, 3 Are Worth Your Time

I wanted to validate a startup idea before writing code. So I tested every free AI startup idea validator I could find in 2026 — same idea across all of them. The test idea: "An AI tool that monitors local government meeting minutes and alerts residents when decisions affect their neighborhood — zoning changes, construction permits, budget allocations. Freemium: free alerts for your address, $9/month for full neighborhood coverage." I picked this because it's ambiguous — not obviously good or...