A database optimised for storing embeddings and performing approximate-nearest-neighbour (ANN) search over millions to billions of vectors.
retrieval
Vector Database
Related terms
Tools that implement Vector Database
LanceDB
RAG
8.2
Open-source multimodal lakehouse and vector database built for AI training and retrieval at petabyte scale.
Freemium· Open-source free; LanceDB Cloud and Enterprise via contact salesvector-searchrag
Chroma
RAG · Hosted vector DB (not an LLM)
8.1
Embedded, developer-friendly vector store for Python.
Freemium· Free open-source; Chroma Cloud paidprototypingembedded RAG
Pinecone
FeaturedRAG · Hosted vector DB (not an LLM)
8.8
Managed vector database for production-scale similarity search.
Freemium· Free starter; serverless pay-as-you-go from $0.33/1M readsmanaged vector DBproduction RAG
Weaviate
RAG · Hosted vector DB (not an LLM)
8.4
Open-source vector DB with hybrid search and modules.
Freemium· Free open-source; cloud from $25/moself-hosted RAGhybrid search