Your GA4 already knows who’s going to buy.
Sibyl scores every visitor and builds the audiences your ads target — all in your own Google Cloud.
Google Cloud.Read-only sign-in that issues your install command — nothing deploys until you run it.
How Sibyl works.
Your GA4 already records intent
Every visit, cart, and purchase is already on record. Sibyl checks your BigQuery export — and helps you link it if it isn't on yet.
A model scores every user
Sibyl learns from that history and scores every visitor on how likely they are to do it next — a purchase, a sign-up, any event you choose.
Scores become bands
The scores sort everyone into High, Medium, and Low. You set the split; Sibyl refreshes it daily.
Bands land in GA4 — and Ads
The bands arrive in GA4 as ready-made audiences, shared to your linked Google Ads — target High, exclude Low.
Your first-party data never leaves your Google Cloud project.
Making Science never sees your data, your model, or its scores — Sibyl ships the software, and everything it builds stays yours. The specifics are in Privacy.