Milvus
Open-source vector database built for billion-scale similarity search with distributed deployment options.
Why it is included
Widely deployed when ANN search becomes a first-class data plane alongside OLTP/OLAP.
Best for
Large-scale retrieval, deduplication, and multimodal search platforms.
Strengths
- Scale-out story
- GPU index options
- Zilliz ecosystem
Limitations
- More moving parts than embedded vector stores
Good alternatives
Qdrant · Vespa · Elasticsearch vector
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