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winston ai
Beta for teachers

First-pass grading against your rubric

Add your rubric and a stack of essays. Each one comes back with a suggested score per criterion and comments that quote the student’s own sentences, ready for you to review.

Free for teachers during the beta. You always have the final say.

How it works

You set the standard, the grader does the first read, and you sign off.

  1. Step 1: Add your rubric

    Paste or upload it, or start from a template for argumentative essays, literary analysis or lab reports.

  2. Step 2: Upload the essays

    Add files one at a time or import a whole assignment from your class at once.

  3. Step 3: Review and release

    Check each suggested score, edit any comment, then share the feedback with students when you’re happy.

Feedback students can act on

Specific, tied to the rubric, and always reviewed by you before anyone sees it.

  • Scores by criterion

    A suggested score for every row of your rubric, not just one overall grade.

  • Comments that quote the essay

    Each comment points to the sentence it’s about, so students know exactly what to fix.

  • Your rubric, your scale

    Points, bands or letter grades, with your own descriptors and weightings.

  • Teacher in the loop

    Nothing reaches students until you approve it. Change any score or comment in a click.

  • AI check in the same pass

    Optionally run every essay through the AI detector while it’s graded, with results kept separate.

  • Class overview

    See which criteria the whole class found hardest, so the next lesson starts in the right place.

Who it’s for

Built with teachers who mark hundreds of essays a term.

  • Secondary teachers

    Get your weekends back

    Do the first read of a class set in an evening, then spend your time on the essays that need a closer look.

    Solutions for education

  • Lecturers and TAs

    Consistent across sections

    Apply one rubric the same way across several markers, and spot scores that drift before grades go out.

  • Tutors and writing centres

    Feedback between sessions

    Give students rubric-aligned notes on every draft, and use your session time for the conversation.

Essay grader questions

Something else on your mind? Visit the help center or ask our team.

No. Every score is a suggestion until you approve it, and you can change any score or comment. Students only see feedback you’ve released.

Most analytic rubrics with clear criteria and levels: point scales, bands or letter grades. Holistic rubrics work too, though the comments are less specific.

During the beta we’re measuring how closely suggestions agree with teachers’ own grades on real assignments, and we’ll publish the results. Until then, treat scores as a starting point.

Yes. Essays are visible only to you and the colleagues you share a class with, can be deleted at any time, and are never used to train our models.

Mark the next stack in an evening

Join the beta free and grade your first assignment with your own rubric.