Milvus, an open-source vector database, enhances the development of Retrieval Augmented Generation (RAG) applications by streamlining processes and improving efficiency. Its integration with popular embedding models simplifies text transformation into searchable vectors, while its hybrid search capability supports multimodal data retrieval. Additionally, Milvus offers a cost-effective solution for managing large knowledge bases through minimizing memory consumption, implementing tiered data storage, and leveraging intelligent caching and data-sharding techniques. Overall, Milvus helps developers build faster, more accurate, and cost-efficient RAG applications.