If you already run Postgres and your corpus is in the low millions of vectors, pgvector is usually the right first choice — one less system to operate, and your filters, joins, and transactions stay in one place. You reach for a dedicated vector database like Pinecone or Qdrant when recall at hi...
Source: [Dev.to](https://dev.to/libme/pgvector-vs-pinecone-vs-qdrant-when-is-a-dedicated-vector-database-actually-worth-it-2d3o)