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Term · Checked November 4, 2026

Parameters

The adjustable numbers inside a model that training sets; a rough measure of the model's size.

Source: Wikipedia

AI basics

Why it matters

During training, a model's parameters are nudged billions of times until its predictions get good. Afterward they are fixed, and they are what the model is: a very large table of learned numbers.

More parameters usually means a more capable model that needs more memory and compute to run, but it is only a rough guide. Data quality and training methods matter as much, and many companies no longer publish parameter counts at all.

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