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I Used DeepSeek R1 + Open Data to Challenge AI ROII used DeepSeek R1 on AWS Bedrock to test AI ROI claims against SEC revenue data and developer productivity11 min read·pragmatic-builder.hashnode.devJun 4
I Built a RAG System That Actually Works — Hybrid Search, Reranking, and the Decisions That MatteredHow I built an advanced RAG pipeline with hybrid search, reranking, and semantic chunking — the architectural decisions and code that made it work.8 min read·pragmatic-builder.hashnode.devMay 31
