Multi-Model LLM Orchestration with OpenRouter

Multi-model LLM orchestration is the practice of routing AI requests to different models based on what each task needs — speed, cost, reasoning depth, or code quality. OpenRouter makes it practical by exposing models from Anthropic, OpenAI, Google, Meta, Mistral, and others through a single OpenAI-compatible API: one key, one bill, one client, and you swap models by changing a string. The implementation is a few dozen lines of code on top of the OpenAI SDK. This post walks through the pattern: d