Gemini 3.1 models seem to take from same quota as Opus and others

This could of course be a factor of it being new, and the extensions not seeing it as being in “group 1” however, as I use Gemini 3.1 pro I am seeing Opus and Sonnet model quotas depleting. Can a google rep here comment on which quota pool is effected by its use, please? For reference, I have not used ANY Opus or Sonnet model time in over two weeks, and only picked up antigravity today to use the new model. 3.1 is a beast by the way!!!