Best AI Tools for Grading Student Work in 2025
Looking for the best AI tools for grading? Whether you're a teacher aiming to reduce marking time, improve feedback quality, or streamline your assessment workflow, this guide will help you find the top AI grading platforms in 2025.
AI grading tools have rapidly advanced, offering support for written assignments, maths solutions, multiple-choice questions, and even artwork. Below, we break down the most popular AI grading solutions used by schools, colleges, and universities around the world.
1. Graded.Pro – All-in-One AI Grading for Every Subject
Graded.Pro is one of the best AI tools for grading across a wide range of subjects. Designed specifically for schools, it puts teachers in control while significantly reducing marking workload.
- Subjects Supported: Maths, Science, English, Humanities, Languages, Art, and more
- Key Features:
- AI-generated feedback with teacher override
- Voice and text annotations
- Google Classroom integration or direct upload
- “Incognito” student links for anonymous submission
- AI viva-voce to verify student authorship
- Why It's a Top Pick: Trusted by over 1,000 schools worldwide and supports handwritten and creative work
2. Gradescope – Best AI Grading Tool for STEM
Gradescope, part of Turnitin, is widely used in higher education and excels at grading STEM assignments and exams.
- Subjects: Maths, Computer Science, Engineering, Physics
- Key Features: Rubric-based grading, scanned handwritten work, automatic grouping of answers
- Best For: University-level assessment and structured exam marking
3. Scribo AI – Best AI Grading for English and Literacy
Scribo AI provides detailed feedback on student writing. It’s ideal for English teachers who want grammar and structure support for essays.
- Subjects: English, Language Arts, Literacy
- Key Features: Real-time feedback, sentence structure and tone analysis, Google Classroom integration
- Limitations: Not suitable for non-literary subjects
4. Conker AI – AI Marking for Formative Assessment
Conker AI is a UK-based platform aimed at formative classroom assessment. It’s popular in primary and secondary schools for quick low-stakes quizzes.
- Subjects: Core UK curriculum subjects
- Key Features: AI-generated multiple-choice and short answer questions
- Limitations: Not designed for essays or extended responses
5. Khanmigo – AI Feedback and Support for Students
Khanmigo is Khan Academy’s AI assistant. While not a traditional AI grader, it does provide student support and feedback across subjects.
- Subjects: Maths, Science, Humanities (U.S. aligned)
- Features: AI tutoring and feedback on learning tasks
- Best For: Guided learning, not final grading
Comparison Table: Best AI Grading Tools
| AI Tool | Best For | Subjects Supported | Teacher Control | Handwriting Support |
|---|---|---|---|---|
| Graded.Pro | All-subject AI grading with full teacher control | All major subjects incl. handwriting & art | ✅ Yes | ✅ Yes |
| Gradescope | STEM and exam marking | STEM, MCQs | ✅ Yes | ✅ Yes |
| Scribo AI | English and essay grading | English only | ✅ Yes | ❌ No |
| Conker AI | Formative quizzes and MCQs | Core UK subjects | ❌ No | ❌ No |
| Khanmigo | AI tutor and student support | U.S. curriculum | ❌ No | ❌ No |
Choosing the Right AI Grading Tool
The best AI grading tool depends on your needs. For most schools, Graded.Pro offers the best balance of automation, teacher oversight, and support for diverse work types. If you're focused on STEM or higher education, Gradescope is a solid alternative. For writing-heavy curricula, Scribo AI may fit best.
With education workloads rising, these AI grading tools can give teachers back the time to focus on what matters most – teaching.