Building a semantic cache layer in front of RAG — and why it might be the most underrated cost optimization in production AI systems. Hey Dev community 👋 Every RAG architecture diagram I see looks exactly the same. User → Vector Search → LLM → Response.
Source: [Dev.to](https://dev.to/surajrkhonde/can-a-semantic-cache-become-your-primary-retrieval-layer-2o11)