Model routing: smart, frontier, fast, and cheap

Not every task needs the frontier model. Triage wants latency. Reasoning wants depth. Summarization wants price. Routing everything to one model is the easiest config and the most expensive one.

Refusion ships four strategies:

• smart — balance cost and quality per task type
• frontier — reach for the strongest model when reasoning matters
• fast — minimize latency for high-volume, low-stakes calls
• cheap — minimize cost for batch and throwaway work

Each task type maps to a primary model and an automatic failover. The router meters exact cost per run, so you can see which strategy actually pays for itself — and switch in one place when a new model drops.

The point is not to pick the best model. It is to stop picking.