Free for teachers
AI rubric generator
Attach your assignment or describe it in one line. Sparky writes a rubric with criteria, levels and points in a table you can edit, print or send to Google Docs or Word.
Used by 250,000+ teachers, and built to FERPA, COPPA and GDPR standards.
How the rubric generator works
Tell Sparky what students are making
Describe the task in a line, such as "a lab report for 10th grade chemistry", or attach the assignment sheet. If the grade level or the skills that matter most are missing, Sparky may ask before it writes.
Check the draft
The rubric opens as a table beside the chat, with a row for each criterion and a column for each level. Ask for changes like "add a row for citations", or click into the table and type.
Print it or export it
Copy the rubric, print it, save it to Google Drive as a Google Doc, or download a Word file. For a wide rubric, choose Landscape when you print.
What you can put in a rubric
Criteria from your assignment
Attach the assignment sheet or the standards it covers, and Sparky builds the rows from it. Each row covers one skill, so one mistake isn't scored twice.
Levels students can tell apart
Each level says what the work does, like "explains how most of the evidence supports the claim", in place of labels like "good" or "excellent".
Points and weights
A 4-point scale per row, points out of 100, or a row that counts double. Sparky shows how the points add up to the total.
Your school's scale
Name the levels your school uses, such as 1 to 4 or Beginning to Exceeding, and the rubric uses those words.
A version for students
Ask for "I can" statements, or a checklist students go through before they turn in their work.
The rubric type you use
An analytic table, a single-point rubric with one column of expectations, or a holistic scale with one score for the whole piece.
Ways teachers use it
Essays
Argument, narrative and research writing, with a row for each skill the unit taught, such as using evidence or citing sources.
Projects and presentations
Score what students made and how they presented it in separate rows: research, visuals, eye contact and pacing.
Lab reports
Rows for the hypothesis, data, analysis and conclusion, with levels that describe a strong data table or a careful error analysis.
Rubrics you already have
Attach last year's rubric and ask Sparky to make vague levels specific, add a row for a new standard, or turn it into a single-point rubric.
Data privacy
Safe to use with student work
What happens to the files you upload and what your students write in Flint.
Not used to train AI
Student data in Flint is never used to train AI models.
Not shared
Flint does not share student data, or any other user data, with third parties.
Kept separate
Each school's data is kept apart from every other school's, and the AI providers Flint runs on can't reach it.
Signed agreements, on request
Flint signs a data processing agreement with any school that needs one, written to US state law and EU GDPR.
What teachers say about Flint
"From a professional standpoint, Flint's impact on teaching practice is profound. By automating tasks such as document formatting and rubric construction, Flint AI restores the teacher’s focus to pedagogy, discourse, and relational teaching."
Joseph Shannon
Upper School Literature and Philosophy Teacher at Chartwell School
"Flint AI has become essential to my daily routine. I rely on it for differentiating instruction, writing comments, planning lessons, managing recess duty schedules, and developing rubrics."
Beonka Caldwell
4th Grade Teacher at The Kinkaid School
"By partnering with AI for aspects of grading, I can provide richer, more personalized feedback while maintaining consistent standards across all submissions, giving students the thorough attention and detailed guidance their work deserves."
Christa Forster
English Lit and Composition Teacher at The Kinkaid School
Frequently asked questions
Is the rubric generator free?
Yes. It's free for teachers, and there's no limit on how many rubrics you can make.
Can I make a rubric from my own assignment?
Yes. Attach the assignment sheet as a PDF, Word file or slides, or import it from Google Drive or OneDrive. Sparky writes the criteria from what the assignment asks students to do, so the rows match the task.
What kinds of rubrics can it make?
Ask for the kind you use: an analytic rubric with a row for each criterion and a column for each level, a single-point rubric that lists only the expectations, a holistic rubric with one score for the whole piece, or a checklist.
Can it turn rubric scores into a grade?
Yes. Ask for points or weights, and for a table that turns the total into a percentage or a letter grade. Check the cutoffs against your school's grading scale before you use them.
Can I save the rubric as a Google Doc, Word file or PDF?
Buttons above the rubric copy it, print it, save it to your Google Drive as a Google Doc, or download it as a Word file. For a PDF, press Print and pick Save as PDF. To fit a wide rubric on one page, choose Landscape in that same print window.
Can Flint grade student work with the rubric?
Yes. Open the AI essay grader, attach a student's essay and your rubric, and Sparky drafts a score for each row with feedback for you to check.
Explore more tools
See all tools ->
AI essay grader
Share a student's essay and your rubric. Sparky comments on the sentences that matter and drafts a score for each row of your rubric.
AI worksheet grader
Attach a student's worksheet as a photo or a file. Sparky marks each answer, explains each mistake and drafts a score for you to check.
AI writing feedback
Share a student's writing. Sparky drafts feedback that quotes the student's sentences, names what works and picks the next steps that will help most.
