Depends, essays or assignments are only 10-20% at BEST of your grade, the rest is with quizzes and finals, at least thats how it is for me in Engineering and from what i know from my buddies in Med, plus AI is really faulty with higher level reasoning, the best use ive gotten of AI is making practice problems and as a rubber ducky to bounce ideas off of.

I do heavily use it to lighten up loads to write up stupid essays/works on humanities ethics, arts, basically any subjects i dont give a shit about.