12 alternatives to pgvector in Vector Databases & Retrieval Infrastructure. 3 of them are tracked direct competitors.
| Company | Pricing | Open source | Funding |
|---|---|---|---|
| pgvectorthis pageOpen-source PostgreSQL extension adding vector similarity search. | Free | Yes | Bootstrapped |
| Chromadirect competitorOpen-source embedding database designed for LLM applications. | Free | Yes | Seed |
| Elastic / Elasticsearchdirect competitorWidely used search engine with vector/hybrid search support. | Freemium | Yes | Public |
| Pineconedirect competitorManaged vector database purpose-built for similarity search at scale. | Freemium | No | Series C |
| LanceDBEmbedded, serverless vector database built on the Lance data format. | Free | Yes | Unknown |
| MarqoEnd-to-end vector search engine combining embeddings and retrieval. | Enterprise | Yes | Series A |
| MongoDB Atlas Vector SearchVector search built into MongoDB's managed Atlas platform. | Paid | No | Public |
| Neo4jLeading graph database, also supports vector indexes for GraphRAG. | Freemium | Yes | Series D+ |
| OpenSearchOpen-source search and analytics suite, an Elasticsearch fork, with vector search. | Free | Yes | Unknown |
| QdrantOpen-source vector database written in Rust, focused on performance. | Freemium | Yes | Series A |
| Redis (vector search)In-memory database with vector search capabilities for RAG use cases. | Enterprise | Yes | Public |
| SingleStoreDistributed SQL database with native vector search support. | Enterprise | No | Public |
| TileDBUniversal database engine supporting vector search on multi-dimensional data. | Freemium | Yes | Series A |
Direct competitors are curated relationships in the index. The remaining entries share the Vector Databases & Retrieval Infrastructure category.