Milvus

Milvus is an open-source vector database built for scalable similarity search. Backed by Zilliz, it handles billions of vectors with distributed architecture, GPU-accelerated indexing, and multi-vector search. Milvus supports a wide range of index types (IVF, HNSW, DiskANN) and integrates with popular AI frameworks. It's the choice for teams needing enterprise-scale vector search.