The Part of Shipping AI Nobody Demos: What Happens After Launch

A live demo proves a model works once, against one input, on one good day. It says nothing about whether it will still be accurate three months later, once real usage patterns start drifting away from whatever it was originally tuned against.

Continuous evaluation is the unglamorous part of running AI in production: watching real outputs against real outcomes, catching quiet accuracy drift before a user does, and retuning before it becomes a visible problem. None of this shows up in a sales demo. All of it is the actual difference between a model that worked once and a product that keeps working.