Remarkably, with a vast number of adjustable parameters (called weights), LLMs can create a model that emulates how humans communicate through written text. Weights are complex mathematical transformations that LLMs learn from reading those billions of words, and they tell the AI how likely different words or parts of words are to appear together or in a certain order. The original ChatGPT had 175 billion weights, encoding the connection between words and parts of words. No one programmed these weights; instead, they are learned by the AI itself during its training.
