Feature request: show and control the model mode in Brain / Brain MAX

The model selector shows the model name (e.g. Claude Opus 5.5) but not its mode (reasoning level / extended thinking / fast vs. deep). Different modes have significantly different costs and speeds. Please (1) show the active mode next to the model name, and (2) let users choose between speed and lower cost, ideally with an estimate of credit/token usage per mode. This would help teams plan and control AI usage costs.