Zilliz Cloud is a serverless, cloud-hosted managed vector database powered by Milvus, with auto-sharding, scaling, pay-per-use pricing, automated backups, multi-region support, and RBAC/multi-tenancy. Designed for enterprise RAG and billion-scale production AI applications. Offers fully managed simplicity over self-hosted Milvus, with enterprise-grade features comparable to Qdrant Cloud.