Book: Database Playbook: Choosing the Right Store for Every System You Build

Also by me: RAG Pocket Guide: Retrieval, Chunking, and Reranking Patterns for Production

My project: Hermes IDE | GitHub — an IDE for developers who ship with Claude Code and other AI coding tools

Me: xgabriel.com | GitHub

You have 1.2 million chunks, 1536 dimensions, a Postgres cluster you already pay for, and a Slack thread three engineers deep arguing about whether to add Pinecone to the bill. Half the team wants the managed service. Half the team is allergic to another vendor. Both halves are quoting blog posts that never agree on the same numbers.

This post compares the two on latency, recall, cost per million vectors per month, and operational weight. Where the data comes from a named public benchmark, you get the link.…