AI engineering glossary · MLOps, LLMOps cloud

What is champion-challenger?

Champion-challenger: A method where the current production model, the champion, runs against one or more newer candidates, the challengers, on live or replayed traffic. A challenger replaces the champion only if it proves better on agreed measures.

Level: advancedTopic: MLOps, LLMOps cloud

Champion-challenger: an example

A bank keeps its scoring model as champion while a new gradient-boosted challenger scores the same applications in the background for a month.

Related terms

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Where you learn it

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

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