Upload handwritten scripts
Upload scans or photos of completed exam papers or worksheets. Check that the answers are legible, then review the feedback against the question's mark scheme.
Prepare and upload scans →Teacher marking guide
AI marking for teachers
SudoStudy marks written answers against the question's mark scheme and explains each decision. Upload handwritten scripts or assign a digital quiz, then review the marks and feedback before returning results to your students. This guide shows how to mark exam papers with AI, from preparing scripts to sharing reports.
Find your subject and exam board →What our marking benchmark measures
In August 2026, SudoStudy compared marks from Gemini 3.7 Flash with examiner marks in Cambridge Example Candidate Responses. The essay subset reached 95.9% mark-weighted alignment, rounded to 96%. This is a historical benchmark of that model, not a measurement of the current grading model, a school outcome or Cambridge endorsement.
| Scope | Answers | Available marks | Absolute mark difference | Alignment |
|---|---|---|---|---|
| Essays worth at least 10 marks | 18 | 314 | 13 | 95.9% |
| All included answer types | 94 | 670 | 42 | 93.7% |
Method and limits
For each answer, take the absolute difference between the AI mark and examiner mark. Add these differences, divide by the sum of available marks, then subtract from 1. For the essay subset: 1 − (13 ÷ 314) = 95.9%. This is not the percentage of answers marked identically: only 9 of the 18 essays received exactly the examiner mark; across all included answers, 61 of 94 matched exactly.
The sample covers Cambridge A Level Economics, Business and Physics practical graphs, plus O Level Economics and Business. It combines development and validation cases; the essay subset includes 13 training and 5 validation answers. It is not an independent held-out evaluation and does not establish accuracy for other subjects, boards, models or handwritten classroom scans. Physics Paper 2 records were excluded because answer images showed examiner marks, which could leak the reference answer.
Teachers should review the awarded marks and feedback against the mark scheme. A fresh evaluation is needed before applying this result to the current model. Last source review: 27 September 2026.
Source: SudoStudy's committed per-answer benchmark records, run on 16 August 2026. The model attribution follows the experiment notes; one Economics result-file header has a documented model-name error. The records are internal, and this review recalculated scores without rerunning grading or independently auditing every image.
Choose how your students will answer
Print a quiz for your class
Create a quiz in SudoStudy and print it for a paper-based assessment. Once students have finished, scan their responses and upload them for marking.
Follow the print-and-scan guide →Assign an online assessment
Choose questions from the subject library and share the quiz with your class. Multiple-choice answers are checked automatically; written responses receive AI marking and feedback.
Create and assign a quiz →Review the mark, then decide what to teach next
Open the quiz results to inspect individual responses and the feedback behind each mark. Compare that reasoning with the mark scheme, and use teacher overrides where a mark needs correcting.
Use the class and student breakdowns to identify topics that need another lesson. Student reports bring those results together for progress reviews and conversations with parents.
Questions about marking
- How does AI marking use the mark scheme?
- SudoStudy checks written responses against the mark scheme for each question and explains the marks awarded. Multiple-choice answers are checked automatically. Teachers can review the feedback and override marks before returning results.
- Can I mark handwritten exam papers?
- Yes. Upload scans or photos of handwritten work for marking. You can also print a quiz from SudoStudy, have students complete it on paper, and upload their scanned responses. The print-and-scan guide explains how to prepare and upload the scripts.
- Which exam boards does SudoStudy support?
- SudoStudy supports questions from Cambridge (CIE), AQA, Pearson Edexcel and OCR. Check the subject library for the subjects and papers available for your course before setting an assessment.
- Can I share the results with students and parents?
- Teachers can view quiz results, review individual answers and use student reports to track performance. Downloadable reports can be shared with parents; the student reports guide explains the available views.
Explore the full teacher guide or see how departments use SudoStudy in our school case studies.