// freeCodeCamp · 25 February 2026

How to Build a Serverless RAG Pipeline on AWS That Scales to Zero

Most RAG tutorials end the same way: you've got a working prototype and a bill for a vector database that runs whether anyone's querying it or not. Add an always-on embedding service, a hosted LLM end

freeCodeCamp

@freecodecamp · Christopher Galliart

www.freecodecamp.org

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