Free for up to 100 essays a month. No credit card. Works with Google Classroom, Canvas, and Schoology.
Paste an essay and see how CoGrader scores it against a real rubric.
Pick a rubric from our library, or let CoGrader detect the right one from the essay.
Sending students directly? Try the free no-signup student essay grader.
An AI essay grader is a tool that reads student writing and automatically produces scores and feedback. The best tools evaluate essays against a structured rubric, score each criterion separately, and explain why.
Normally, teachers grade essays manually and students wait weeks for their grades. With an AI essay grader, the entire process gets streamlined, so teachers can grade a full class in minutes.
Students also get feedback while the assignment is still fresh in their minds, so they can actually apply it and improve their writing.
Every feature built around how teachers grade. Choose a rubric, instruct the AI, review the first pass, and send students feedback they can act on.
Pick from 30+ standards-aligned rubrics covering STAAR, CAASPP, B.E.S.T., Regents, AP Lang, AP Lit, AP US History, and Common Core. Upload your own or generate one from a state standard.
Select the feedback format that matches how you teach. CoGrader supports Glow and Grow, Two Stars and a Wish, Rose Bud Thorn, WWW/EBI, and four others. Comments stay aligned with the rubric you graded against.
Nothing reaches students until you review and sign off. Edit any score, rewrite any comment, and adjust the feedback to match your voice so the final grade is one you'd give yourself.
Connect Google Classroom, Canvas, Schoology, DMAC, Brightspace, or Blackboard in a few clicks. CoGrader imports submissions, matches your roster, and exports grades back to your gradebook.
Identify AI-generated submissions and plagiarized writing with built-in detection. Each flag includes the specific evidence behind it, so you can review and decide how to handle each case.
See originality checkerTrack student growth across rubric criteria, assignment types, and class periods. See which standards your class needs to revisit before the next assessment.
Every CoGrader rubric is built from the state's official scoring guides and reviewed by classroom teachers. Pick yours, or build your own.
Argumentative, Informative, and Narrative rubrics for grades 6 to 12. Aligned with TEKS standards.
See STAAR rubricsSmarter Balanced ELA performance task rubrics. Argumentative, Informative, and Narrative writing.
See CAASPP rubricsFlorida Assessment writing rubrics for grades 4 to 10. Aligned to the B.E.S.T. ELA standards.
See B.E.S.T. rubricsProse Constructed Response rubrics. Narrative, Literary Analysis, and Research Simulation tasks.
See New York rubricsAP Lang, AP Lit, AP History DBQs and LEQs. Official College Board scoring rubrics.
See AP rubricsDon't see your state? CoGrader supports rubrics for all 50 states, plus IB and Cambridge A-levels.
Teaching AP? Try the dedicated AI DBQ grader, AI LEQ grader, or AP FRQ grader for AP Lang, AP Lit, AP Gov, AP Psych, and more. Want to flag AI writing before you grade? Try the AI essay checker.
A full class of 30 essays takes most teachers about 8 minutes from import to export.
Connect your LMS with one click. CoGrader automatically imports assignments and your class roster. Working from PDFs and Word docs? Upload them directly.
Use a state-aligned rubric, upload your own, or generate one from a standard. CoGrader can also infer a rubric from your assignment prompt if you don't have one ready.
The AI evaluates each essay criterion by criterion and writes rubric-aligned feedback for every student. Most class sets finish in under 5 minutes.
This is where you come in. Adjust scores, edit comments, and rewrite anything you'd phrase differently. When you're satisfied, export grades back to your LMS in one click.
Rubric-based scoring
Every criteria graded separately. Claim/Focus, Evidence, Organization, Language. Your students see exactly where they stand.
You approve every grade
Review, adjust scores, edit feedback. Nothing goes to students without your sign-off.
Works with your LMS
Import from Google Classroom, Canvas, or Schoology. Export grades back in one click.
Claim, evidence, counterclaim, conclusion. Aligned to Common Core, state, and AP rubrics.
Thesis, support, organization, clarity. From middle-school expository through college-level analysis.
Plot, character, voice, and style. Personal narrative, short fiction, and memoir formats.
Scored on official College Board rubrics, including thesis, evidence, contextualization, and the sophistication point.
See DBQ graderStrategy identification, evidence, line of reasoning, and the sophistication point.
See AP Lang graderClaim, textual evidence, analysis, and conventions. Built for AP Lit, honors English, and college prep.
See AP Lit graderSpecific to your prompt, with rubric-aligned scoring for short and extended (BCR / ECR) responses.
See ECR graderScience explanations scored on claim, evidence, and reasoning. Built for lab conclusions and open response, aligned to NGSS science practices.
See CER graderAge-appropriate feedback, simpler vocabulary, growth-focused comments.
Learn moreCommon Core aligned with scaffolded comments that build writing stamina.
Learn moreStandards-rigorous feedback ready for STAAR, CAASPP, B.E.S.T., and Regents.
Learn moreTrained on College Board rubrics for DBQs, LEQs, rhetorical analysis, and synthesis.
See AP gradersI am excited to assign more writing (my kids need so much practice!) now that I can give them specific and objective feedback more quickly. I may even postpone my retirement because of your product!
Co-workers, students, and I have compared results from CoGrader with a variety of other AI scoring tools for AP essays, and yours is by far the most accurate (I score for the AP Exam), with the best feedback.
Helping teachers grade but more importantly helping give quality feedback, and putting the power of great feedback into the hands of kids so they have agency to improve.
Teachers will be motivated to assign more writing assignments. It is an enriching, time-saving tool for teachers that lets them personalize student feedback quickly, leaving more time for targeted instruction. CoGrader can also create new rubrics or use an existing rubric teachers provide.
Connect Google Classroom on every plan. Canvas, Schoology, DMAC, Brightspace, and Blackboard are included on school and district tiers.
One-click import of assignments from Google Classroom. Grades and feedback go straight back to Google Classroom.
Easy setup for your course. Pull submissions from Canvas, then push grades and feedback back.
Import assignments from Schoology, grade the set, and send scores and feedback back to the gradebook.
Student names are anonymized before any data reaches our AI providers, and our agreements with those providers prohibit using student work for model training.
“[CoGrader] enhance[s] the grading process by ensuring that teachers can provide detailed and thoughtful feedback in a timely fashion.”Edutopia
“…[CoGrader] has saved him hours on grading and allowed him to spend more time giving personalized comments.”Chalkbeat New York
“…teachers say AI helpers can provide consistency and remove bias from assessments of student work.”The Wall Street Journal
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CoGrader 2.0's AI-powered platform puts advanced grading technology in the hands of teachers, helping them save up to 80% of time spent grading and drafting feedback.
Start free for up to 100 essays per month. Scale up when you are ready, with plans built for individual teachers, schools, and districts.
For educators starting out with AI grading to provide timely and specific feedback
Free
For individual educators paying out of pocket who are ready to grade like pros.
$15/month, billed annually
For bulk user management, institution-wide reporting & analytics, and training.
Based on size
For institutions and corporations with custom needs or API access.
Custom
Sign up to use CoGrader for free and check if out for yourself it helps you free up time.
Schedule a demo to learn more how you can streamline your grading process and save time.
Build a standards-aligned rubric in seconds, then grade essays with it in the same tool.
Build a rubricFlag AI-written submissions with evidence-backed detection before you grade.
Check for AI writingSend students our free, no-signup essay grader for instant rubric-based feedback.
See the student graderCoGrader: the AI Teaching Assistant.
An AI essay grader is a tool that reads student writing and automatically produces scores and detailed feedback against a rubric. The best graders evaluate each criterion separately and explain why. CoGrader handles the first pass, then teachers review and approve before students see it.
CoGrader's grade suggestions are reliable and often more consistent than the typical variance between two human graders scoring the same essay. Use it as a first pass and adjust where needed, with your professional judgment kept in the loop.
Yes. CoGrader 2.0 received a Seedlings to Scale research grant from the U.S. Department of Education's Institute of Education Sciences to study AI-assisted personalized feedback in K-12 classrooms. See the IES award page or read our writeup on the research behind AI grading.
ChatGPT gives generic feedback because it does not know your rubric. CoGrader grades against your specific criteria, aligns to state standards, integrates with your LMS, requires your sign-off before grades reach students, and is FERPA compliant. It is built specifically for teachers, not a general-purpose chatbot. See the full comparison.
Trust comes from the workflow, not the model. Every CoGrader grade is a first pass that the teacher reviews and adjusts before students see it. Nothing publishes without your approval. The AI handles the repetitive work; the final professional judgment stays with the teacher.
Yes. The Starter plan is free forever and includes 100 student submissions per month, the rubric builder, FERPA compliance, help center access, and 90 days of premium features. No credit card required to start. Paid plans unlock more submissions, more integrations, and class analytics.
Yes, on every plan, including the free Starter tier. CoGrader integrates with Google Classroom to pull assignments and submissions and to export grades back in one click. Canvas, Schoology, DMAC, Brightspace, and Blackboard are also supported on paid plans.
Yes. CoGrader comes preloaded with rubrics for Common Core, TEKS, Florida B.E.S.T., California Smarter Balanced, Texas STAAR, New York Regents, AP, and IB. We support rubrics for all 50 states. You can also upload custom rubrics or generate one from a state standard.
Yes. CoGrader has dedicated graders trained on official College Board rubrics for AP Language, AP Literature, and AP US History DBQs and LEQs. Each rubric component is scored separately, including thesis, evidence, contextualization, and the sophistication point.
Yes. CoGrader's built-in detection on School and District plans flags AI-generated content for teacher review. It surfaces the evidence behind each flag so you can decide how to handle each case. No detector is 100% accurate, so flags are advisory.
A typical 500-word essay takes about 8 to 12 seconds for the AI to grade. A class set of 30 essays usually finishes in under 5 minutes. Teacher review of the full class typically takes another 2 to 3 minutes.
Yes. CoGrader is SOC 2 Type 1 certified, FERPA compliant, and follows the NIST 1.1 framework. Student work is anonymized before our AI providers process it, and our provider agreements prohibit using student data to train their models.
The teacher. Always. CoGrader produces a first pass that the teacher reviews, adjusts, and approves before publishing. The final grade is the educator's professional judgment, supported by AI but never replaced by it.
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