I tried Gemini 3 Pro to find $30,000 worth of hidden savings
CFOs can build a vendor spend audit app in 5 minutes.
Finance thinks their vendor data is clean until they try to answer one simple question:
“How much did we actually spend on AWS last year?”
And suddenly the report shows:
AWS
AmazonWS
Amazon Web Services
AMZN Web Services (old)
Different names, different IDs and different payment terms.
And your $420k AWS spend quietly turns into $610k.
It’s the most common and most expensive data quality failure in finance.
Fragmented vendors lead to fragmented spending and eventually lost negotiation power, hidden waste, and unreliable reporting.
In today’s letter, I’ll show you how to build a Vendor Spend Audit app in 5 minutes using Gemini 3 without sharing confidential data and uncover more than $30,000 in hidden savings.
Once the app detects duplicate vendors, you can review and unlink matches manually; nothing is forced or auto-merged. And when you’re satisfied, the app lets you export either a clean vendor list or a full master mapping your team can use for a real savings or consolidation project.
And the best part is there are zero hallucinations.
No confidential data ever leaves your app.
This isn’t an LLM guessing patterns. it’s a deterministic fuzzy-matching algorithm that reliably finds duplicate vendors every time.
Let’s dive in.