Reference · Glossary
Model weights
Last updated
The **learned numbers** inside a neural network that encode patterns from training — billions of parameters saved as files.
When to use
Discussing training cost, fine-tuning, downloading open models, quantization, or why inference reads weights but doesn't rewrite them.
When not to
End users rarely touch weights directly — they call an API or app that loads weights on a server or GPU.
Example
Llama weights on disk might be 4–70 GB; inference loads them once, then runs forward passes for each user prompt.