# What is weight? > Source: > Published: 2026-09-01 21:14:29+00:00 I think you probably mean **model weights**… : A simple way to picture it might be a huge recipe. A model has an enormous number of numerical “amounts” inside it. During [training](https://docs.pytorch.org/tutorials/beginner/basics/optimization_tutorial.html), those amounts are adjusted little by little depending on how well the model is doing. Those adjustable numbers are its **parameters**, and many of them are **weights**. So when you see something like “[download/load the model weights](https://huggingface.co/docs/transformers/models)” on Hugging Face, it basically means getting those learned numerical settings instead of starting with an untrained model.