Explore the inner workings of Large Language Models and discover how ChatGPT operates in this comprehensive 15-minute tutorial. Learn the fundamental concepts behind LLMs and dive deep into Retrieval-Augmented Generation (RAG), understanding how this powerful technique enhances AI responses by combining pre-trained language models with external knowledge retrieval systems. Gain insights into the architecture and mechanisms that make modern AI chatbots effective, and understand how RAG improves the accuracy and relevance of AI-generated content by accessing and incorporating real-time information from external databases and knowledge sources.