Part 3/14:
At the heart of ChatGPT lies GPT, which stands for Generative Pre-trained Transformer. This technology is primarily designed to read and generate text. It works by training a deep neural network to predict the next token—a token being essentially a small grouping of characters, such as a word or part of a word.
While it may sound simple—predicting the next character—this capability masks a profound depth of learned knowledge. By predicting the next token repeatedly over billions of data points, GPT develops an extensive understanding of language, logic, and context. For example, having read countless checklists or code snippets, it can generate similar outputs convincingly.