Purpose-built databases for storing and querying high-dimensional vector embeddings. Essential infrastructure for RAG pipelines, semantic search, and recommendation systems.
| Tool | Best For | Pricing |
|---|---|---|
| Pinecone | Teams wanting managed simplicity at any scale | Free tier (100K vectors), then $70/mo Starter |
| Qdrant | Performance-sensitive workloads with complex filtering needs | Free tier (1GB), then $25/mo cloud; open-source self-hosted |
| Weaviate | Hybrid search use cases and teams wanting built-in vectorization | Free sandbox, then $25/mo Serverless; open-source self-hosted |
| pgvector | Teams already on PostgreSQL with under 5M vectors | Free (open-source PostgreSQL extension) |
| Chroma | Prototyping, local development, and small-scale projects | Free (open-source) |
Fully managed vector database with zero operational overhead, excellent developer experience, and seamless scaling from prototype to billions of vectors.
Free tier (100K vectors), then $70/mo Starter
Teams wanting managed simplicity at any scale
High-performance vector search engine written in Rust. Offers both cloud-managed and self-hosted options with excellent filtering and payload support.
Free tier (1GB), then $25/mo cloud; open-source self-hosted
Performance-sensitive workloads with complex filtering needs
Open-source vector database with built-in hybrid search combining vector and keyword matching. Strong module ecosystem for vectorization and ML integration.
Free sandbox, then $25/mo Serverless; open-source self-hosted
Hybrid search use cases and teams wanting built-in vectorization
PostgreSQL extension adding vector similarity search to your existing Postgres database. Supports IVFFlat and HNSW indexes with zero additional infrastructure.
Free (open-source PostgreSQL extension)
Teams already on PostgreSQL with under 5M vectors
Developer-friendly, open-source embedding database designed for rapid prototyping. Simple Python API with in-memory and persistent storage modes.
Free (open-source)
Prototyping, local development, and small-scale projects
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