What Is AI Inference? The Difference Between Training a Model and Actually Using It

Article automatically generated from technical news.

You type a prompt into ChatGPT. Two seconds later, a full answer appears. Nothing about the model changed during those two seconds — it didn't learn anything, it didn't get smarter, it didn't update itself based on your question. So what actually happened in that gap? That's inference. It's the least talked-about part of AI, and it's also the part you interact with every single time you use an AI product. Training gets all the headlines — the huge datasets, the massiv