Ai for marking tests and essays

So my school (if you can even call it that) has an external company provide the syllabus, provide and mark tests, exams and assignments (assignments are marked internally though). So they upload the unmarked tests and exams as soon as you write them and they are scanned in, and they upload digital copies of the question papers memos and the marked papers once results are out (although nothing is stopping me from scanning my own copy of the question paper) and this is all accessible from my portal. I’m wondering if you guys know any good AIs and tools that can mark my papers early instead of me having to wait with anxiety until exams are over and even longer till they actually get to marked (they tend to take a really long time). Are they any free Ais (or at least with a free trail) out there that mark tests and essays well, if I give it the question paper and the scan of my answer sheet. I’ve tried using chatgpt but there’s the upload limit and the general ai hallucinations that come with it. I also tried gemeni not that big of an upload limit but it tends to hallucinate stuff way more even in other applications. One thing is essays are way more important for me as they make up a lot of marks in most of my subjects, so an ai that’s good at that is a major positive.

Any help, ideas or suggestions would be much appreciated.

But you have no way of knowing what their grader is going to say is a correct answer.

Any AI solution is going to grade your work based on the data that was in its training set. There’s no guarantee the AI will be accurate or agree with the school’s grader.

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I agree with you but at least having some sort of ball park number should be possible, plus if the context window is large enough I could just upload my textbooks for each exam (anywhere from 150 to 350 pages) so it can try make reference to that data.