AI Gateway (LLM Gateway) Explained: What It Does, When You Need One and What It Costs

This blog post explains what an AI (LLM) gateway is, its components, differences from API gateways, and production challenges. It provides benchmarks comparing nginx, Kong, Portkey, and LiteLLM, discussing self-hosted versus managed options, and shares lessons learned from version 1.107.0 of LiteLLM.