Reference · GlossaryModel routingSending each request to the right model size or provider for cost and quality.On this pageWhen to useWhen not toExample#When to useAs a vocabulary anchor when reading Lane A–D lessons or writing policies.#When not toAs legal advice — pair governance terms with your org's counsel.#ExampleSee lesson `semantic-cache-lab` in the interactive spine.Learn by doing → Learn by doing →Related termsModel router / gatewayCost per token← All terms