RAG on a Budget: How I Replaced a $360/Month OpenSearch Cluster with S3 and In-Memory Search
AI
AI Infrastructure
Amazon Bedrock
+25
There's a version of this post where I start with the cost savings and you click away satisfied. But the more interesting story is the series of architectural decisions — some deliberate, some forced — that got me from "let's build this properly" to a production RAG system running for about $1 a month.
This is that story.
