Chatgpt 3.5 is free. Can't get more student priced than that.

Yeah, my point was I don't think there are many offering the service for free. And they are probably looking for revenue streams.

Suppose you ignore students running their own LLMs offline on their gaming gpus

I actually feel like this is the one that shouldn't be ignored. But I don't have a good sense of the computational power vs quality output.

It's still wildly impractical because students can paraphrase LLM output into something that doesn't look like the original output.

At least doing that is likely to result in the student internalizing the information to some degree. It's also not so different (not at all different?) from the most benign academic dishonesty that existed when I was a student.

One issue with the approach I suggested is the copyright issue of profs submitting students' original work for AI processing without understanding/caring about copyright implications.