Generative Pre-trained Transformer (GPT) is a game-changing artificial intelligence algorithm that uses large amounts of data to generate human-like text responses. In this talk, we will begin by discussing the basics of GPT, including its architecture, training process, and common variants. Then, we will explore the potential applications and implications of GPT in various fields of science and engineering. We will also examine its impact on education and society as a whole, including ethical considerations.