Vector Store Comparison
| Store | Local / Hosted | Setup effort | Metadata filtering | Scale ceiling | Cost model | Pick it when |
| Store | Local / Hosted | Setup effort | Metadata filtering | Scale ceiling | Cost model | Pick it when |
A vector store persists embedded chunks and answers nearest-neighbour queries. Every implementation in this folder — Chroma, FAISS, pgvector, Pinecone — sits behind the same VectorStore interface, so swapping the backend later is mostly a constructor change, not a rewrite.