GPT stands for, Generative Pre-trained Transformer and is a type of artificial intelligence model designed to generate human-like text based on the input it receives. It belongs to a broader category of models known as transformers, which have revolutionized the field of natural language processing (NLP). GPT models are trained on a vast collection of text data, learning patterns, structures, and nuances of language through this training process. As a result, they can compose text that mimics a wide range of writing styles and formats, from conversational dialogue to technical reports.

GPT models are iterative; with each new version, the model typically increases in size and complexity, leading to improvements in its ability to understand context and generate coherent, relevant text. These advancements have made GPT models incredibly versatile, enabling their use in a variety of applications, including but not limited to, chatbots, content generation, and even aiding in coding and other technical tasks.