Vector Stores

Vector stores contain embedding vectors of ingested document chunks (and sometimes the document chunks as well).

Simple Vector Store

By default, LlamaIndex uses a simple in-memory vector store that’s great for quick experimentation. They can be persisted to (and loaded from) disk by calling vector_store.persist() (and SimpleVectorStore.from_persist_path(...) respectively).

Vector Store Options & Feature Support

LlamaIndex supports over 20 different vector store options. We are actively adding more integrations and improving feature coverage for each.

Vector Store	Type	Metadata Filtering	Hybrid Search	Delete	Store Documents	Async
Apache Cassandra®	self-hosted / cloud	✓		✓	✓
Astra DB	cloud	✓		✓	✓
Azure Cognitive Search	cloud		✓	✓	✓
Azure CosmosDB MongoDB	cloud			✓	✓
ChatGPT Retrieval Plugin	aggregator			✓	✓
Chroma	self-hosted	✓		✓	✓
DashVector	cloud	✓	✓	✓	✓
Deeplake	self-hosted / cloud	✓		✓	✓
DocArray	aggregator	✓		✓	✓
DynamoDB	cloud			✓
Elasticsearch	self-hosted / cloud	✓	✓	✓	✓	✓
FAISS	in-memory
txtai	in-memory
Jaguar	self-hosted / cloud	✓	✓	✓	✓
LanceDB	cloud	✓		✓	✓
Lantern	self-hosted / cloud	✓	✓	✓	✓	✓
Metal	cloud	✓		✓	✓
MongoDB Atlas	self-hosted / cloud	✓		✓	✓
MyScale	cloud	✓	✓	✓	✓
Milvus / Zilliz	self-hosted / cloud	✓		✓	✓
Neo4jVector	self-hosted / cloud			✓	✓
OpenSearch	self-hosted / cloud	✓		✓	✓
Pinecone	cloud	✓	✓	✓	✓
Postgres	self-hosted / cloud	✓	✓	✓	✓	✓
pgvecto.rs	self-hosted / cloud	✓	✓	✓	✓
Qdrant	self-hosted / cloud	✓	✓	✓	✓	✓
Redis	self-hosted / cloud	✓		✓	✓
Simple	in-memory	✓		✓
SingleStore	self-hosted / cloud	✓		✓	✓
Supabase	self-hosted / cloud	✓		✓	✓
Tair	cloud	✓		✓	✓
TencentVectorDB	cloud	✓	✓	✓	✓
Timescale		✓		✓	✓	✓
Typesense	self-hosted / cloud	✓		✓	✓
Upstash	cloud				✓
Weaviate	self-hosted / cloud	✓	✓	✓	✓

For more details, see Vector Store Integrations.

Examples

• Astra DB
• Simple Vector Store - Async Index Creation
• Azure AI Search
• Azure CosmosDB MongoDB Vector Store
• Cassandra Vector Store
• Chroma
• DashVector Vector Store
• DashVector Vector Store - Hybrid Search
• Deep Lake Vector Store Quickstart
• DocArray Hnsw Vector Store
• DocArray InMemory Vector Store
• Epsilla Vector Store
• Jaguar Vector Store
• LanceDB Vector Store
• Lantern Vector Store
• Metal Vector Store
• Milvus Vector Store
• MyScale Vector Store
• Elasticsearch Vector Store
• Faiss Vector Store
• MongoDB Atlas
• Neo4j vector store
• Opensearch Vector Store
• Pinecone Vector Store
• Pinecone Vector Store - Hybrid Search
• pgvecto.rs
• Postgres Vector Store
• Redis Vector Store
• Qdrant Vector Store
• Qdrant Hybrid Search
• Rockset Vector Store
• Simple Vector Store
• Supabase Vector Store
• Tair Vector Store
• Tencent Cloud VectorDB
• Timescale Vector Store (PostgreSQL)
• Weaviate Vector Store
• Weaviate Vector Store - Hybrid Search
• Zep Vector Store