Retrieval Augmented Generation (RAG) systems have significantly enhanced AI applications by providing more accurate and contextually relevant responses. However, scaling and deploying these systems in production have presented considerable challenges as they become more sophisticated and incorporate custom AI models. BentoML is a valuable tool that simplifies the process of building and deploying inference APIs for custom models, optimizes serving performance, and enables seamless scaling. By integrating BentoML with the Milvus vector database, organizations can build more powerful, scalable RAG systems.