The document provides an agenda for a presentation on ChatGPT. It begins with introductions and definitions of GPT and ChatGPT. It then discusses the uses, advantages, and limitations of ChatGPT, and compares ChatGPT to Google Search. The agenda also covers the evolution of pre-trained models like GPT, how ChatGPT works internally, enabling technologies, demystifying ChatGPT 3.5, and the impact of GPT models on applications. Finally, it discusses the roadmap for ChatGPT 4 and beyond, challenges and future directions, and a conclusion.