
AI Engineering
pgvector vs Pinecone vs Qdrant: Benchmarked for RAG in 2026
I loaded 100,000 OpenAI embeddings into pgvector 0.8.7 on Postgres 18 and Qdrant 1.19 and measured recall, latency, index build and filtered search, then compared Pinecone's documented limits and pricing. When you need a vector database, and when Postgres is enough.





