AI engineering glossary · AI ethics law product

What is shadow mode?

Shadow mode (also called shadow deployment): Running a new model on real traffic in the background, without showing its outputs to users, so its predictions can be compared against the current system or human decisions. It shows real-world performance before any user is affected.

Level: intermediateTopic: AI ethics law product

Shadow mode: an example

A new fraud model scores every transaction silently for two weeks while analysts compare its flags with the live system's.

Related terms

More AI ethics law product terms

Where you learn it

Shadow mode is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.

Before you go

Take the cheat sheet with you

One free PDF: the key AI-engineering terms, formulas and Python idioms. No spam; unsubscribe any time.