Milvus
Cloud-native distributed vector database for billion-scale
Verdict
Go-to for billion-scale vector workloads. Kubernetes-native, sharding built in. Operational complexity is high — consider Zilliz Cloud (managed Milvus) for teams without K8s expertise.
Other Vector Databases
- PineconeProduction
Fully managed serverless vector database
- WeaviateStable
Open-source vector database with built-in ML modules
- QdrantStable
High-performance vector similarity search engine in Rust
- ChromaStable
Embedded, developer-first vector database
- pgvectorProduction
PostgreSQL extension for vector similarity search
- Redis 8 (Vector Search)Stable
Vector similarity search and full-text index, now built into core Redis

