Elasticsearch Vector Search
Vector similarity search built into the Elasticsearch engine
Verdict
If you already run Elasticsearch, adding vector search avoids a new system. HNSW indexing with hybrid BM25+kNN. Mature ops tooling. Best for teams with existing Elastic infrastructure.
Other Vector Databases
- ChromaStable
Embedded, developer-first vector database
- LanceDBExperimental
Embedded serverless vector database backed by Lance columnar format
- MilvusStable
Cloud-native distributed vector database for billion-scale
- MongoDB Atlas Vector SearchStable
Native vector search within MongoDB Atlas — no separate database needed
- PineconeProduction
Fully managed serverless vector database
- QdrantStable
High-performance vector similarity search engine in Rust