Milvus
Open-source, high-performance vector database and indexing engine designed for billion-scale vector similarity search and analytics.
76
Hero Score
Popularity
72
Performance
100
Ecosystem
75
Maturity
77
Dev Experience
57
⭐ 46,365 stars⬇ 773.1K downloads/wkFirst release: Mar 2019Last release: Sep 2026
Async Support: YesPlugin Extensions: HighSpeed: Very fastDoc Quality: HighLearning Curve: Medium
Pros
- • Scales to billions of vectors with distributed storage/compute
- • Multiple indexing algorithms (IVF, HNSW, ANNOY, etc.) and hybrid search
- • Strong ecosystem integrations (LangChain, LlamaIndex, Spark, FAISS)
Cons
- • Operational complexity at scale (clusters, storage tiers)
- • Heavier footprint vs lightweight libraries
- • Deployment/monitoring require infrastructure knowledge