Milvus vs Tencent Cloud VectorDB
Milvus
milvus.ioTencent Cloud VectorDB
cloud.tencent.cnSide by side
| Figure | Milvus | Tencent Cloud VectorDB |
|---|---|---|
| Price from | Free | $584/mo |
| Free plan | Yes | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 1 | 3 |
| Spec score · Vector Databases | 8.2 (#7) | 7.9 (#12) |
| Product | Milvus is an open-source vector database built for GenAI applications. | Tencent Cloud VectorDB is a fully managed, self-developed distributed database for storing, indexing, retrieving, and managing multidimensional embedding vectors. |
| Scale | Milvus supports deployments from local notebook demos to Kubernetes clusters handling tens of billions of vectors. | The product page states that one index supports up to hundreds of billions of vectors, with up to million-level QPS and millisecond query latency. |
| SDKs | Milvus provides official REST, Python, Go, Java, Node.js, and C++ APIs or SDKs; C# is contributed by Microsoft and Rust is under development. | Tencent provides Python, Java, and Go SDKs, and its connection guide specifies minimum versions of Python 3.6, Java 8, and Go 1.15. |
| Security | Milvus documents user authentication, TLS encryption for gRPC and REST traffic, and role-based access control. | The product documentation describes account and API-key authentication, VPC isolation, security-group traffic controls, and CAM-based resource permissions. |
| Support | The Milvus site lists community channels including Slack, Discord, GitHub, and Milvus Office Hours. | Tencent directs product questions to online customer service or support tickets and also points users to its developer community. |
Plans
Tencent Cloud VectorDB
- 高可用版（存储型）$584 a month
- 高可用版（标准型）$872 a month
- 高可用版（计算型）$1,256 a month
In their own words
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.
Tencent Cloud VectorDB
Tencent Cloud VectorDB has no write-up on Specifiction yet; its figures are above.