If you're using it 24h/day you probably will run into it unless you're very careful about managing context and/or the requests are punctuated by long-running tool use (e.g. time-consuming test suites).

I'm on the $200/month plan, and I do have Claude running unattended for hours at a time. I have hit the weekly limits at times of particularly aggressive use (multiple sessions in parallel for hours at a time) but since it's involved more than one session at the time, I'm not really sure how close I got to the equivalent of one session 24/7.