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
- PineconeProduction
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- 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
- MilvusStable
Cloud-native distributed vector database for billion-scale