Vector DB

Chroma

Python-first embedded vector DB, now a metered Chroma Cloud

LanceDB

Embedded, serverless vector DB for multimodal AI, no server to run

Milvus

Billion-scale open-source vector DB behind Zilliz Cloud

Pinecone

Serverless vector database with pay-per-use pricing

Qdrant

Rust vector search engine built for filtering-heavy AI workloads

Weaviate

Open-source vector DB with hybrid search, now backed by $200M