In this AWS Analytics in 15 video, Aruna Govindaraju, an OpenSearch Specialist Architect at AWS, explains how Amazon OpenSearch Service can be used as a vector database to power vector search applications. She covers the basics of vector search, recent OpenSearch ML capabilities, and how to leverage OpenSearch for semantic search, personalized recommendations, and generative AI applications. Govindaraju also discusses challenges in implementing vector search and future directions for simplifying the process. The video provides a comprehensive overview of using OpenSearch as a vector database to enhance search applications with machine learning and AI capabilities.