Rubrix AIJoin beta
Rubrix Co-grader

Grade papers faster. Keep the judgment that matters.

Rubrix Co-grader brings rubric-based grading, reusable feedback, and academic-integrity tools directly into Microsoft Word, while keeping every final decision in the educator's hands.

Rubrix Co-grader home screen in the Microsoft Word task pane
Open Rubrix Co-grader and choose the workflow you need without leaving Word.
A focused grading workflow

From standards to useful feedback, without rebuilding your process.

  1. 1

    Open the paper

    Work with the document already open in Microsoft Word.

  2. 2

    Set the standard

    Upload a rubric, enter grading criteria, or reuse a saved project.

  3. 3

    Generate and review

    Request a draft grade and feedback, then revise before inserting anything.

  4. 4

    Return clear guidance

    Place comments in the document and keep the final grading decision.

Your standards, ready to reuse

Set up once. Grade with consistency.

Save grading projects with the rubric, grading style, and comments you use for a course or assignment. Return later and pick up with the same expectations already in place.

  • Upload a PDF or Word rubric
  • Use graded examples to calibrate feedback
  • Save projects for recurring assignments
Saved rubrics and rubric upload options in Rubrix Co-grader
Saved in-text grading comments in the Rubrix task pane
Comments that stay useful

Use AI Comments or Create and Save Your Own Comments

Use the AI generated in-line comments in conjunction with your own comments that you can save for later use under each grading project. Organize the ones you use most, and insert them into the body of the paper or the Word comments pane at the selected passage.

  • Specific placement Tie feedback to the passage that needs attention.
  • Reusable libraries Keep course-specific comments with the project.
  • Instructor control Edit, accept, or reject generated comments before use.
Adjustable, not automatic

Tell Rubrix how you grade.

Set the academic level, grading toughness, tone, and feedback emphasis before generating a response. The tool adapts to your instructions and leaves the final call with you.

Rubrix controls for grading level, toughness, tone, and point of view

Rubric-based grading

Evaluate against the criteria that belong to the assignment.

Inline and pane comments

Place feedback in the format that best fits the moment.

AI and plagiarism checks

Use additional academic-integrity checks on eligible plans.

Bring your next grading project into Word.

Beta participants can help shape the workflow before Rubrix Co-grader's wider release.