Routing

Steer requests for speed, price or behaviour with model suffixes.

Add a suffix to a model id to control how the request is routed.

Suffix	Effect
:nitro	Route to the fastest available provider.
:floor	Route to the lowest-cost provider.
:online	Enable live web search for this request.
:thinking	Enable extended reasoning where supported.

"model": "claude-sonnet-4.6:nitro"    # fastest
"model": "gpt-5.5:floor"              # cheapest
"model": "gpt-5.5:online"             # with web search

Not every suffix applies to every model. Unsupported suffixes are ignored.