Cost‑Control Layer Slashes RAG Expenses by 85% with Semantic Caching and Model Routing
A production‑grade cost‑control layer for Retrieval‑Augmented Generation combines semantic caching (98.5% hit rate), query routing to lower‑cost models, token budgeting, and circuit‑breaking. In benchmarks of 10 k daily requests it reduced LLM token spend by up to 85.8% with unchanged answer quality.