Parameters

Parameters are numbers the model adjusts during training-you can think of them as millions of tiny knobs whose settings determine the network's behavior. Model size is stated in parameters: billions (B) is today's standard, and the largest models have hundreds of billions. More parameters usually means greater capabilities, but also higher operating costs and slower responses. That's why alongside giants, small specialized models are being developed that achieve surprisingly good results in specific tasks at a fraction of the size.