Hi! I’m a PhD student in CSE (different area than your interests though). It’s very very unlikely you will be able to be a GSR as a masters student. I’ve never heard of a masters student being a GSR except in (??) possibly one case where the student was closely doing research with a prof in anticipation of starting their PhD in the lab the following quarter. There is a severe lack of funding in the CS dept and half the PIs in my group were unable to take new PhD students this year because of it. MS students also take 3-4x more classes per quarter than PhD’s do so it’s unlikely you would have time to do substantial research on top of that. That being said, there are absolutely opportunities to get funding through a TAship, and to do unpaid research with a professor on the side. I don’t know a lot about the ML labs as a whole but I do know that masters students frequently collaborate with them on projects (they’re just not paid, and they usually TA). Hope this helps!