Specific models for api keys

So recently they’ve added Gemini 2.5 pro to the premium tier. I am someone who uses other Gemini models a lot and I don’t want to toggle either priority or fall back of API keys whenever I decide to use let’s say Gemini 2.5 pro and Gemini 2.5 flash. It would be nice if I could enable API usage for Gemini 2.5 pro and T3 standard 1500 messages for Gemini 2.5 flash.