Education
AI Rubric Generator — Fair, Clear Grading Rubrics in Minutes
Describe the assignment and the AI builds a structured grading rubric with criteria, levels, and descriptors.
What is Rubric Generator?
Cobain AI's Rubric Generator helps teachers build clear, consistent grading rubrics in minutes. Just describe the assignment, the subject, and the level, and the AI produces a structured rubric with relevant criteria, performance levels, and detailed descriptors for each level. A good rubric makes grading faster and fairer while showing students exactly what's expected of them.
Key features
Structured criteria
The AI breaks the assignment into meaningful, gradeable criteria automatically.
Clear performance levels
Each criterion comes with described levels — from excellent to needs improvement.
Detailed descriptors
Every level includes specific language so grading is consistent and transparent.
Any assignment type
Essays, projects, presentations, lab reports, artwork, and more.
Fairer, faster grading
Use the same standards for every student and cut grading time significantly.
Editable and reusable
Adjust criteria and weights, then reuse the rubric for similar assignments.
How it works
- 1
Describe the assignment
Enter the task, subject, and grade level you're assessing.
- 2
Generate the rubric
Let the AI create criteria, levels, and descriptors for you.
- 3
Adjust the criteria
Edit, reorder, or reweight criteria to match your priorities.
- 4
Grade and share
Use the rubric to grade consistently and share expectations with students.
Perfect for
Frequently asked questions
Is the rubric generator free?
Yes. You can create rubrics for free with a Cobain AI account, with paid options for higher volume.
What assignments does it support?
Any type — essays, projects, presentations, lab reports, art, and more. Just describe the task.
Can I choose the performance levels?
Yes. The AI suggests levels and descriptors, and you can edit or rename them to fit your style.
Can I edit the criteria?
Yes. Add, remove, reorder, and reweight criteria so the rubric matches your priorities.
Does it work for different grade levels?
Yes. Set the level and the AI adjusts the criteria and language accordingly.
Can I reuse a rubric?
Yes. Save your rubric and reuse it for similar assignments to keep grading consistent.
Ready to try it?
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