Understanding LLMs: How They Work and How to Build Applications With Them

Large Language Models like ChatGPT and Claude are advanced AI systems that process and generate human-like text. They function by predicting the most likely next token using Transformer architecture trained on massive datasets. These models excel at tasks like text generation and summarization but have limitations including potential hallucinations and high computational costs. Developers can build more effective applications by augmenting LLMs with tools, context, and memory systems.