CoGrader

CoGrader is an AI service built for schools and educators to grade essays and other long-form student responses. It reduces grading time by up to 80% while keeping feedback detailed and useful for each student.

How CoGrader works

Teachers upload or paste student work, and CoGrader analyzes key writing elements to generate actionable feedback:

• Text structure and organization
• Argumentation and clarity
• Grammar and mechanics
• Alignment with the assignment prompt

Benefits for schools and educators

CoGrader is used in 1,000+ schools and is supported by Microsoft and UC Berkeley, highlighting its reliability and academic focus. It helps educators spend less time on repetitive grading and more time on instruction and individual support.

Supporting student growth

By providing timely, specific comments and recommendations, CoGrader helps students understand mistakes sooner and improve their writing skills over time. It turns essay grading into a more transparent, manageable process focused on writing and critical thinking development.