Vector Database / RAG

Milvus vs Weaviate: Which is Better in 2026?

Choosing between Milvus and Weaviate? Both are popular vector database / rag tools. Below we compare them on pricing, free tiers, features, and pros & cons so you can pick the right fit for your stack.

Quick verdict

Both Milvus and Weaviate are strong vector database / rag choices. The right pick comes down to your specific feature needs, existing stack, and team preferences.

Milvus vs Weaviate — Side by Side

MilvusWeaviate
CategoryVector Database / RAGVector Database / RAG
PricingFreeFree · paid from $45/mo
Starting priceFree tier availableFree tier available
Free tier
Rating4.54.6
Best forVector Database / RAG — rag, open-sourceVector Database / RAG — rag, open-source

Pros & Cons

Milvus
Milvus
  • Scales to billions of vectors
  • Open-source
  • Many index algorithms
  • Managed Zilliz option
  • Heavier to self-host
  • Overkill for small projects
Weaviate
Weaviate
  • Built-in vectorization modules
  • Strong hybrid search
  • Open-source core
  • Good RAG ergonomics
  • Cloud free usage is time-limited
  • Cloud pricier than Qdrant/Pinecone at scale

Key Features Compared

Milvus

  • Open-source
  • Billion-scale vectors
  • Zilliz Cloud free tier
  • Multiple index types

Weaviate

  • Open-source (self-host free)
  • Built-in vectorizer modules
  • Hybrid search
  • GraphQL & REST APIs

Choose Milvus if…

  • You want a free tier to validate before paying.
  • Scales to billions of vectors
  • Open-source
  • Many index algorithms
Milvus review & pricing

Choose Weaviate if…

  • You want a free tier to validate before paying.
  • Built-in vectorization modules
  • Strong hybrid search
  • Open-source core
Weaviate review & pricing

Frequently Asked Questions

Is Milvus better than Weaviate?⌄

Both Milvus and Weaviate are strong vector database / rag choices. The right pick comes down to your specific feature needs, existing stack, and team preferences.

What is the difference between Milvus and Weaviate?⌄

Milvus — Open-source vector database built for billion-scale embeddings, with managed Zilliz Cloud option. Weaviate — Open-source vector database with built-in vectorization modules and hybrid search for RAG applications. Both are vector database / rag tools; the comparison table above breaks down pricing, free tiers, and what each is best for.

Milvus vs Weaviate: which is cheaper?⌄

Milvus pricing: Free. Weaviate pricing: Free · paid from $45/mo. Confirm current pricing on each tool's official site, as plans change.

Which is rated higher, Milvus or Weaviate?⌄

In our catalog, Milvus rates 4.5 out of 5 and Weaviate rates 4.6 out of 5, so Weaviate has a slight edge on reviews.

See more options in our guide to the best vector database / rag tools for startups.

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