Routing
Model Variants
Use floor and nitro suffixes to choose a route.
Append :floor to sort hosts by price or :nitro to sort by throughput.
The default route already favors the pinned host, and floor is the price-oriented variant.
A :free ID works only when the full ID is a separate routed catalog model.
:thinking, :extended, and :online return 400 unless the full ID is a routed model.
The recorded variant cases are chat_suffix_floor, chat_suffix_nitro, and chat_suffix_free.
Recordings for :thinking and :extended are missing.