It's crazy how different everyone's experience is. I'm running 3-6 concurrent sessions in work hours and Opus 5.5 feels practically unlimited on $200/month. The value is incredible for how much I'm outputting. I finally managed to exhaust a weekly budget doing huge refactors and letting it run through the night with many sub agents so I thought I would try OpenAI for the first time. Even using Terra for most of my sub agents I can't believe how quickly I'm burning through my weekly quota. It seems significantly less generous than my Claude sub and at least in my experience Opus 5.5 is also clearly superior.