Milvus

Milvus is an open-source vector database built for scalable similarity search that handles billion-scale vector collections with hardware-accelerated indexing and search optimized for AI application use cases including recommendation systems, semantic search, and multimodal retrieval. Its cloud-native architecture supports horizontal scaling, multiple index types for different performance tradeoffs, and hybrid scalar-vector filtering that enables precise similarity search with metadata constraints. AI platform teams and ML engineers building large-scale production similarity search applications use Milvus for its performance at billion-vector scale and its active open-source community backing its continued development.