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

This story is from 2026-08-22. It is preserved in the archive; the latest stories are on the live feed.

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 le…

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  1. 2026-08-22 17:57 · DEV Community — Machine Learning
    What Is AI Inference? The Difference Between Training a Model and Actually Using It

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