Calibrate connects to your Google Classroom and uses AI to grade student writing — learning from your feedback to become a more accurate reflection of your own rubric over time.
What Calibrate does
Calibrate isn't just an AI — it's a grading partner that learns your standards and gets better the more you use it.
Connects directly to your existing Google Classroom. Students submit work the same way — nothing changes for them.
Import your existing rubric and Calibrate scores every criterion with detailed reasoning for each score.
When you override a score, Calibrate remembers. Over time it aligns with your standards — not generic AI expectations.
Auto-generated feedback in your voice, exportable as PDF with your chosen format — Shine, Stretch, Wonder or custom.
Student names and identifiable information are never sent to the AI. PII is redacted before every API call.
Track individual student trends across assignments. Identify who's improving, who's struggling, and where the class is as a whole.
How it works
Calibrate fits into the workflow you already have. No new tools for students, no new gradebook for you.
Sign in with your school Google account. Calibrate imports your classes, assignments, and student submissions automatically.
Import an existing rubric or build one in Calibrate. Set anchor papers to show the AI what strong, average, and weak work looks like.
Click Grade. The AI scores every submission against every rubric criterion and writes personalised feedback for each student.
Review AI grades, override where needed, and chat with the calibration tool to lock in your standards for next time.
Designed for real classrooms
Calibrate was designed with the realities of K-12 teaching in mind — not generic AI writing tools adapted for the classroom.
The first time I graded a class of 28 writing assignments in under 20 minutes, I thought something had gone wrong. Then I read the feedback and it actually sounded like me.
— 6th grade ELA teacher, early access tester
Calibrate is free to get started. Connect your Google Classroom and grade your first assignment in minutes.
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