[FEATURE REQUEST] Model Selection for Subagents to Optimize Cost and Performance

Letting you specify different models for
subagents would be very interesting. If you create subagents that do
specific tasks like building and running tests so that you can save context
load in main chat. Then some of those tasks probobly dont need to run on the
smartest and most expensive models. So to be able to specify what the model the subagent should run on would be very interesting