milvusvsweaviate
Milvus excels at massive-scale (billions of vectors), distributed by design. Weaviate offers built-in hybrid search and a friendlier GraphQL API for smaller-to-medium teams.
milvus
github.com/milvus-io/milvusOpen-source vector DB with the most mature features for huge scale. ~30k stars. Steeper operational burden than Qdrant. Used in production by companies doing serious vector workloads.
Full review →weaviate
github.com/weaviate/weaviateVector DB with strong hybrid search (vector + keyword) and built-in modules for common embedding workflows. Slightly higher learning curve than Qdrant but powerful for production RAG.
Full review →Which should you pick?
Pick milvus if…
You are running vector search at extreme scale with a team that can operate distributed systems.
Skip milvus if…
You are a small team — Qdrant or pgvector will be enough and easier to run.
Pick weaviate if…
You need hybrid keyword + vector search and want it built in rather than bolted on.
Skip weaviate if…
You only need pure vector search — Qdrant is simpler.
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