B
Bilion
by Build Decision
100 curated money patterns
Bilion

Know what to build before you build.

Built from 47,000+ founder-source URLs. Bilion helps AI builders find what to build, who to sell to, and how to validate it fast.

For Codex usersFor Cursor buildersFor solo AI builders
Free preview

Try the Money Pattern Explorer for free.

Pick what you can build and who you want to sell to. Bilion returns one launchable opportunity with buyer, pain, and a tiny MVP.

Opportunity
Local Review Reply Assistant
Buyer
Local businesses
Pain
Owners know reviews matter but do not have time to write consistent replies.
Tiny MVP
Paste a customer review → get 3 reply options in the store's tone.
Open Money Pattern Explorer

Stop guessing

Most AI builders can ship fast now. The bottleneck is choosing what is worth building.

Start from signals

Bilion turns founder and product patterns into small product opportunities.

Validate fast

Free shows the opportunity. Founder Access unlocks prompts, copy, pricing, DM scripts, and a 48h validation plan.

Free vs Founder Access

Free shows the opportunity. Founder Access shows how to launch it.

Bilion is designed to make the free result useful, but not complete. If the opportunity looks promising, Founder Access gives the execution package.

Free
$0
  • 1 opportunity preview
  • Buyer
  • Pain
  • Why now
  • Tiny MVP
Try Free
Founder Access
$19
  • Codex-ready prompt
  • Landing page copy
  • Pricing strategy
  • X launch posts
  • Cold DM script
  • 48h validation plan
Unlock Founder Access
Bilion by Build Decision

Build from buyer pain, not random inspiration.

Use Bilion when you can build with AI, but you are stuck choosing what to build next.