{"ID":2899049,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2507.01431","arxiv_id":"2507.01431","title":"Pensieve Grader: An AI-Powered, Ready-to-Use Platform for Effortless Handwritten STEM Grading","abstract":"Grading handwritten, open-ended responses remains a major bottleneck in large university STEM courses. We introduce Pensieve (https://www.pensieve.co), an AI-assisted grading platform that leverages large language models (LLMs) to transcribe and evaluate student work, providing instructors with rubric-aligned scores, transcriptions, and confidence ratings. Unlike prior tools that focus narrowly on specific tasks like transcription or rubric generation, Pensieve supports the entire grading pipeline-from scanned student submissions to final feedback-within a human-in-the-loop interface. Pensieve has been deployed in real-world courses at over 20 institutions and has graded more than 300,000 student responses. We present system details and empirical results across four core STEM disciplines: Computer Science, Mathematics, Physics, and Chemistry. Our findings show that Pensieve reduces grading time by an average of 65%, while maintaining a 95.4% agreement rate with instructor-assigned grades for high-confidence predictions.","short_abstract":"Grading handwritten, open-ended responses remains a major bottleneck in large university STEM courses. We introduce Pensieve (https://www.pensieve.co), an AI-assisted grading platform that leverages large language models (LLMs) to transcribe and evaluate student work, providing instructors with rubric-aligned scores, t...","url_abs":"https://arxiv.org/abs/2507.01431","url_pdf":"https://arxiv.org/pdf/2507.01431v2","authors":"[\"Yoonseok Yang\",\"Minjune Kim\",\"Marlon Rondinelli\",\"Keren Shao\"]","published":"2025-07-02T07:33:19Z","proceeding":"cs.AI","tasks":"[\"cs.AI\",\"cs.CL\",\"cs.HC\",\"cs.LG\"]","methods":"[\"Large Language Model\",\"Language Model\"]","project_urls":"[\"https://www.pensieve.co\"]","has_code":false}