LLM Cost Latency Router: Real-Time Price-Performance Routing for Multi-Model Systems
An LLM cost latency router is a decision layer that sends each request to the cheapest model that still meets your quality and latency bar, instead of calling one expensive model for everything. Real-time routing measures live cost and speed per model and picks the best option per request, cutting inference spend by 35-85% while retaining about 95% of top-model quality. This guide explains how it works, the strategies, and the numbers. ...