Numbers a model learns during training and uses to make answers.
Model weights are like a taco seasoning packet. Same pan, new packet, totally different dinner.
They decide what the model knows and how it answers. In open-source AI, people often download this pack of numbers.
Parameter
Weights are the main kind of model parameter.
Neural-network
A neural network stores learned patterns in its weights.
Fine-tuning
Fine-tuning keeps writing over the old weights.
Open weights
Open weights means sharing this bundle of numbers.