Model Routing
AI & LLM Glossary
What is Model Routing?
Model Routing: Model routing automatically selects the best model for each request based on complexity, cost, or other criteria.
Model Routing Explained
Model routing (or model arbitrage) uses a classifier or rules to route requests to different models. Simple queries go to cheap, fast models while complex queries use more capable (expensive) models. This can reduce costs by 40-60% while maintaining quality. Burnwise tracks costs across all models to help optimize routing decisions.
Examples
- *
Route classification tasks to GPT-5-mini - *
Route complex reasoning to Claude Opus - *
Route code generation to specialized models