Milvus

What is Milvus?

Milvus is a leading open source vector database built for scale and performance, handling billions of vectors, suited to teams needing large scale, high performance open source vector search (with Zilliz for managed). An open source project (under the LF AI and Data Foundation, created by Zilliz), it is designed for high performance similarity search at massive scale, with a distributed architecture, multiple index types, filtering, and the ability to handle billions of vectors, available self hosted or as the fully managed Zilliz Cloud. Widely used for large scale vector search in production, Milvus is a leading open source vector database for scale and performance. For large scale open source vector search, Milvus is a leading choice.

Milvus's distinction is open source vector search built for massive scale and performance. Its distributed architecture, index options and engineering let it handle billions of vectors with high performance, which lighter or less scalable databases do not match for large scale open source vector search, with Zilliz Cloud offering a managed option. That large scale, high performance open source engineering sets it apart.

Who Milvus is best for

Milvus is best for teams and developers needing large scale, high performance vector search (millions to billions of vectors) with open source control, self hosted or via managed Zilliz Cloud. It suits large scale open source vector search. It is a weaker fit for those wanting the simplest managed service with no open source, where Pinecone fits, the lightest weight starter store, where Chroma fits, or vectors in their existing database, where pgvector fits.

Key features

The core strengths are open source, a distributed architecture for massive scale, high performance similarity search, multiple index types, filtering, handling billions of vectors, and managed Zilliz Cloud. Milvus offers large scale, high performance open source vector search. Its large scale, high performance open source engineering is its defining advantage.

Milvus pricing

Milvus is open source and free to self host (you pay for your infrastructure and operations), with the fully managed Zilliz Cloud priced by usage (and a free tier), so you can self host free at scale or use managed Zilliz. So pricing is free self hosted or usage based via Zilliz. Confirm details on the Zilliz site or Milvus site.

Integrations and ecosystem

Milvus integrates with AI frameworks (LangChain, LlamaIndex), embedding tools and the AI stack, with SDKs and a strong open source community (and Zilliz managed cloud). Its ecosystem, community and Zilliz option, which support building and running at scale, back its large scale positioning.

Milvus and scale

Open source vector search built for massive scale and performance is the signature strength: Milvus's distributed architecture and engineering handle billions of vectors with high performance, which lighter databases do not match for large scale open source vector search, with Zilliz Cloud for managed. For large scale open source vector search, this is the main reason to choose Milvus.

Ease of use and support

Milvus is well rated for scale, performance, being open source and handling large vector workloads, a leading choice for large scale vector search, with community and Zilliz support, though reviewers note it is more complex to self host and operate at scale (hence Zilliz Cloud), as with large distributed systems. Its reviews praise scale and performance, with operational complexity the main consideration.

Is Milvus worth it?

For teams needing large scale, high performance vector search with open source control, Milvus is an excellent choice (with Zilliz Cloud for managed). The main caution is operational complexity at scale when self hosting, so the simplest managed service suits Pinecone, the lightest starter store Chroma, and vectors in your existing database pgvector, but for large scale open source vector search Milvus leads.