CoGrader

CoGrader is an AI grading assistant that scores student writing against a rubric and drafts criterion-by-criterion feedback for teachers to review and approve. It is built around the gradebook rather than a chat window: it pulls assignments from the LMS, grades the whole set, and sends approved results back. The teacher stays the final grader on every paper.

What is CoGrader used for?

Teachers use CoGrader to get through stacks of essays faster while giving each student more detailed feedback than time usually allows.

• Importing an assignment from Google Classroom, Canvas or Schoology and grading every submission
• Scoring essays against state test rubrics, AP rubrics or a custom rubric
• Drafting specific feedback for each rubric criterion, which the teacher edits and approves
• Grading handwritten work from photos or scans, with pages sorted by student
• Checking grammar, plagiarism and likely AI writing on paid plans
• Reviewing class reports of average scores by criterion and common growth areas

Who CoGrader is best for

CoGrader is a good match for middle and high school English and social studies teachers with large writing loads, and for teachers preparing students for rubric-scored state exams. Schools and districts that want shared rubrics and consistent scoring can buy institution plans. Teachers who mostly give multiple choice tests, or who prefer to give only verbal or conference-style feedback, will see less benefit.

CoGrader pricing

As of October 2026, CoGrader's Starter plan is free and includes 150 student submissions per month, rubric building and sharing, Google Classroom, Canvas and Schoology integration and handwritten assignments. The Individual plan costs $15 per month billed annually or $19 billed monthly and raises the limit to 350 submissions a month, with grammar checking, a class performance dashboard, AI detection and plagiarism detection. Schools and Districts pricing is based on size and adds unlimited submissions, a shared rubric library and admin controls. Higher Ed and Enterprise plans add API access and custom integrations, and both institution tiers require a quote.

Limitations to keep in mind

• Vague rubrics lead to vague feedback, so the rubric needs clear descriptors
• AI-writing detection is an indicator, not proof, and should not decide a grade alone
• The Individual plan still caps submissions at 350 per month, which a teacher with several sections can exceed
• Teachers need to review every grade, so time savings come from drafting, not from skipping review

CoGrader vs alternatives

Turnitin is the institutional standard for similarity checking and AI writing reports, and its feedback tools suit schools that already license it, but it is not mainly a rubric grading assistant. ChatGPT and Claude can score a pasted essay against a rubric, but one at a time and without LMS sync. Grammarly helps students fix their own writing before they submit. CoGrader wins when a teacher wants a full class set graded against a rubric and pushed back to the gradebook in one workflow.

Tips for getting started with CoGrader

Grade a set you have already marked by hand first, then compare CoGrader's scores with yours to calibrate how much you trust each criterion. Rewrite any rubric row that produces off-target feedback with more concrete descriptors. Use the class report to plan a mini-lesson on the lowest-scoring criterion. Tell students their grades are teacher-reviewed so the feedback is taken seriously.

CoGrader FAQ

Is CoGrader free?

Yes, CoGrader's Starter plan is free and grades up to 150 student submissions per month. The Individual plan costs $15 per month billed annually for 350 submissions.

Does CoGrader work with Google Classroom and Canvas?

Yes. CoGrader has two-way sync with Google Classroom, Canvas and Schoology, importing assignments and returning approved grades and feedback.

Can CoGrader grade handwritten essays?

Yes. Teachers can photograph or scan handwritten work, and CoGrader sorts the pages by student before grading against the chosen rubric.

CoGrader vs Turnitin: which is better?

CoGrader is better for drafting rubric scores and feedback on a class set, while Turnitin is better for institution-wide similarity and AI writing checks.