Amazon CloudSearch vs Milvus
Amazon CloudSearch
aws.amazon.comMilvus
milvus.ioSide by side
| Figure | Amazon CloudSearch | Milvus |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 1 |
| Spec score · Search Databases | 7.5 (#22) | 8.2 (#11) |
| Search features | It supports free text, Boolean, and faceted search, autocomplete suggestions, customizable relevance ranking, field weighting, geospatial search, and highlighting. | Milvus supports approximate nearest neighbor, filtered, range, hybrid, and full-text search, as well as reranking and queries. |
| Security | CloudSearch supports HTTPS and integrates with IAM to control access to configuration, document, search, and suggest services. | Milvus documents user authentication, TLS encryption for gRPC and REST traffic, and role-based access control. |
Plans
In their own words
Amazon CloudSearch
Amazon CloudSearch has no write-up on Specifiction yet; its figures are above.
Milvus
Milvus is an open-source vector database from Zilliz for GenAI and scalable vector search. It supports approximate-nearest-neighbor, filtered, range, hybrid, and full-text search, along with reranking, fetch, and query operations. Metadata filtering, sparse vectors, and index types including HNSW, IVF, FLAT, DiskANN, and SCANN are documented. Deployment choices are Milvus Lite as a Python library, Standalone as a single-machine server, and Distributed on Kubernetes. Documentation recommends Lite for up to a few million vectors, Standalone up to 100 million, and Distributed for 100 million to tens of billions. Lite can run locally without a cloud service for private or sensitive data; an online upgrade from Standalone to a cluster is not currently supported. Official interfaces include REST plus Python, Go, Java, Node.js, and C++ APIs or SDKs. C# is contributed by Microsoft and Rust is under development. Security documentation covers authentication, TLS for gRPC and REST, and role-based access control at collection, database, and instance levels. The Apache 2.0 software is free, and Zilliz Cloud is offered as a managed option.