Weaviate vs Milvus(2026)
Weaviate is better for teams that need richest feature set. Milvus is the stronger choice if best for large-scale deployments. Weaviate is open-source (from $0) and Milvus is open-source (from $0).
Full feature breakdown, pricing details, and pros & cons below.
By Bikram Nath
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Weaviate
Weaviate is an open-source vector database with built-in ML model integrations, graph-like data structures, and hybrid search — available self-hosted or as a managed cloud service.
Starting at $0
Visit WeaviateMilvus
Milvus is an open-source, cloud-native vector database built for scalable similarity search. Designed for billion-scale vectors with high throughput and low latency.
Starting at $0
Visit MilvusHow Do Weaviate and Milvus Compare on Features?
| Feature | Weaviate | Milvus |
|---|---|---|
| Pricing model | open-source | open-source |
| Starting price | $0 | $0 |
| Open source | ✓ | ✓ |
| Built-in vectorization modules | ✓ | — |
| Hybrid search (BM25 + vector) | ✓ | — |
| GraphQL API | ✓ | — |
| Multi-tenancy | ✓ | — |
| Self-hostable | ✓ | — |
| Managed cloud | ✓ | — |
| Billion-scale vectors | — | ✓ |
| Multiple index types (IVF, HNSW) | — | ✓ |
| Cloud-native (Kubernetes) | — | ✓ |
| Attu GUI | — | ✓ |
| Multi-vector search | — | ✓ |
| Managed (Zilliz Cloud) | — | ✓ |
Weaviate Pros and Cons vs Milvus
Weaviate
Milvus
Should You Use Weaviate or Milvus?
For most teams, Weaviate is the better default: it offers richest feature set and is open-source (from $0). Choose Milvus instead if best for large-scale deployments matters more than complex setup. There is no universal winner — the right pick depends on your budget, team size, and whether you value richest feature set or best for large-scale deployments more.
Choose Weaviate if…
- •Richest feature set
- •Built-in ML model support
- •Graph-like traversal
Choose Milvus if…
- •Best for large-scale deployments
- •Active CNCF project
- •Multiple index options