Using the built-in Screen Time tools, yes. Qustodio works pretty well though as an add-on product. Not perfect UX, not perfect functionality, but it's the best I've found.
An easy way around the API token thing is to put it in a file and point the model at the file. I saw what you were seeing when I provided credentials directly, but haven't had any problems with it since using the indirect method.
This effect is certainly real, likely even the default, but it's not inevitable.
I had great results using AI to help my son study for his final exams in chemistry and math. We went through the review guide the teacher provided, he did the problems, I checked them, and I had Claude generate additional targeted problems as permutations of the ones he had difficulty with. He worked them and got more practice in exactly the areas he was weak.
I could have set these problems up myself, but it was much smoother to have Claude set them up and I validate them. It let him get a lot more reps in, in exactly the areas he _needed_ more practice, than he would have otherwise.
The key is that to learn you have to do the work. AI can help you figure out where you're weak and provide the wherewithal to get additional practice, and there's huge value there. But you have to lift the mental weights yourself.
Opus 4.7 in Claude Code. I've used GPT-5.5 in Codex and it's good also, but I have a pretty developed workflow in Claude Code so it's hard to tell if GPT-5.5 is actually rougher or if it just doesn't have the same tooling support I've built up in CC over the past 6 months.
I should add that it's not perfect -- nothing in this space is -- but it to me has the best level of both consistency and quality of the setups I've tried.
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