FREE GUIDES · 02 NOV 2026

Which vector database for RAG? 9 options compared

Pinecone, pgvector, Qdrant, Weaviate, Milvus, Elasticsearch, Redis, Chroma and FAISS: what each one is, and when to pick it.

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WHAT'S INSIDE

All 9 on a one-page cheat sheet: what kind of tool, where it runs, when to pick it
Trade-offs for each one, and a one-line answer for system design interviews
Which one to use, starting from your situation
A working vector search with Chroma in 7 lines of Python, plus links to the official docs

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