Milvus is an open-source vector database that offers three deployment options: Milvus Lite, Standalone, and Distributed. Milvus Lite is a lightweight Python library ideal for rapid prototyping and small-scale experiments. Milvus Standalone is suitable for early production environments with moderate data sizes and growing user demands. Milvus Distributed is designed for large-scale production deployments requiring high availability, scalability, and flexibility. The choice of deployment mode depends on the stage of application development, data size, and use case.