In this video, Sam Witteveen provides a comprehensive tutorial on building AI agents using n8n, a powerful workflow automation tool. He explains the concept of model routing, allowing users to fetch data from various sources, including Wikipedia and third-party APIs. Sam highlights the recent updates to n8n, emphasizing its user-friendly interface and the ability to create customized AI agents without extensive coding knowledge. The tutorial covers the step-by-step process of setting up an AI agent that can handle different queries, demonstrating how to integrate various tools and manage workflows effectively. He discusses the importance of using environment variables for API keys and showcases how to index documents for retrieval-augmented generation (RAG) applications. Throughout the video, Sam encourages viewers to explore n8n’s features and capabilities, making it a valuable resource for those interested in AI automation.