Routing
A prompt is classified by a rule-based scorer, then the active policy picks a model. Paying an LLM to decide which LLM to pay is a bad trade at the hot path, so the classifier is cheap and auditable — and this page lets you dry-run it without spending anything.
Dry-run the router
No upstream is called and nothing is billed.
Decision
Run the explainer to see the candidate set.
No decision yet
Try sample 1 and sample 4 back to back — they should land on different tiers.