GradeLab

GradeLab is an AI checker tool. GradeLab grades scanned handwritten exams, essays, maths and diagrams with AI, supports 30+ languages, offers on-premise deployment and one-click teacher override, and turns marking into a minutes-long batch job for schools, universities and test-prep centres.

GradeLab is an AI grading assistant built for the paperwork side of teaching. Exams are scanned and uploaded, and the platform reads handwritten answers, maps them to the right student and question number, then produces grades with feedback. The headline claim is scale: 200 handwritten exams in under 30 minutes, against roughly four hours of manual marking. The system is trained on real student handwriting and reports 99 percent plus recognition accuracy, with support for more than 30 languages including Arabic and Chinese. The tool is designed for breadth rather than a single exam type. It handles essays, multiple choice, short answers, advanced mathematics, chemical diagrams and mixed layouts, so a department does not need a different workflow for each subject. Teachers stay in the loop through a review layer: any AI-assigned grade can be adjusted with a click, and a moderation step lets staff compare and validate results before release. When grading finishes, an analytics view shows class performance, question difficulty and student progress without a separate spreadsheet pass. The audience spans K-12 schools, universities centralising grading across departments, coaching and test-prep centres running frequent mocks, and public sector or corporate assessment bodies. For institutions with strict data rules, GradeLab offers on-premise deployment so exam data stays inside the campus network with no cloud dependency. The site cites use by 2,000 plus educators and references deployments with government and large-scale exam bodies. Compared with generic AI writing assistants that can mark an essay but stumble on scanned maths or diagrams, GradeLab is narrower and deeper: an assessment pipeline with OCR, rubric grading, teacher override and reporting bundled together. Buyers should treat the speed figures as vendor benchmarks and test them on their own handwriting and subject mix before committing.