Starter
For educators starting out with AI grading to provide timely and specific feedback
Free
Free features
- 100 student submissions per month
- Build rubrics and share
- FERPA compliance
- Help center access
- 14 days of premium access
Backed by
Grade Your First Essay Free
Free for up to 100 essays a month. No credit card. Works with Google Classroom, Canvas, and Schoology.
50,000+ Teachers using CoGrader
2M+ Essays graded with AI
1,000+ Schools across all 50 states
80% Less time spent grading
Used at 1000+ schools
Try It Free
See how CoGrader grades a real essay
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.
The basics
What is an AI 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.
Why CoGrader
Everything included with CoGrader's AI Essay Grader
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.
State and AP rubrics for all 50 states
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.
Eight different feedback styles
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.
Teacher review on every grade
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.
Connects to your LMS
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.
AI and plagiarism detection
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 checkerClass performance analytics
Track student growth across rubric criteria, assignment types, and class periods. See which standards your class needs to revisit before the next assessment.
State standards
Grade with your state's rubric
Every CoGrader rubric is built from the state's official scoring guides and reviewed by classroom teachers. Pick yours, or build your own.
STAAR / Texas
TXArgumentative, Informative, and Narrative rubrics for grades 6 to 12. Aligned with TEKS standards.
See STAAR rubricsCAASPP / California
CASmarter Balanced ELA performance task rubrics. Argumentative, Informative, and Narrative writing.
See CAASPP rubricsB.E.S.T. / Florida
FLFlorida Assessment writing rubrics for grades 4 to 10. Aligned to the B.E.S.T. ELA standards.
See B.E.S.T. rubricsNew York State ELA
NYProse Constructed Response rubrics. Narrative, Literary Analysis, and Research Simulation tasks.
See New York rubricsAP / College Board
APAP 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.
The workflow
Grade your entire class in 4 simple steps
A full class of 30 essays takes most teachers about 8 minutes from import to export.
1
30 seconds
Import your assignments
Connect your LMS with one click. CoGrader automatically imports assignments and your class roster. Working from PDFs and Word docs? Upload them directly.
2
1 minute
Pick your rubric
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.
3
2 to 5 minutes
Let CoGrader grade
The AI evaluates each essay criterion by criterion and writes rubric-aligned feedback for every student. Most class sets finish in under 5 minutes.
4
2 to 3 minutes
Review and adjust
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.
Total time for 30 essays: about 8 minutes. The same grading used to take an entire weekend.
See it in action
Meet CoGrader 👋
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.
Built for every essay
Whatever you assign, CoGrader can grade it
By assignment type
Argumentative essays
Claim, evidence, counterclaim, conclusion. Aligned to Common Core, state, and AP rubrics.
Informative and explanatory
Thesis, support, organization, clarity. From middle-school expository through college-level analysis.
Narrative writing
Plot, character, voice, and style. Personal narrative, short fiction, and memoir formats.
AP DBQs and LEQs
Scored on official College Board rubrics, including thesis, evidence, contextualization, and the sophistication point.
See DBQ graderAP Lang rhetorical analysis
Strategy identification, evidence, line of reasoning, and the sophistication point.
See AP Lang graderLiterary analysis
Claim, textual evidence, analysis, and conventions. Built for AP Lit, honors English, and college prep.
See AP Lit graderConstructed response
Specific to your prompt, with rubric-aligned scoring for short and extended (BCR / ECR) responses.
See ECR graderClaim, Evidence, Reasoning (CER)
Science explanations scored on claim, evidence, and reasoning. Built for lab conclusions and open response, aligned to NGSS science practices.
See CER graderBy grade level
Elementary (Grades 3 to 5)
Age-appropriate feedback, simpler vocabulary, growth-focused comments.
Learn moreMiddle School (6 to 8)
Common Core aligned with scaffolded comments that build writing stamina.
Learn moreHigh School (9 to 12)
Standards-rigorous feedback ready for STAAR, CAASPP, B.E.S.T., and Regents.
Learn moreAP and Honors
Trained on College Board rubrics for DBQs, LEQs, rhetorical analysis, and synthesis.
See AP gradersTeachers on CoGrader
50,000 teachers don't gush about software for no reason
I 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.
Works where you teach
LMS integrations for every classroom
Connect Google Classroom on every plan. Canvas, Schoology, DMAC, Brightspace, and Blackboard are included on school and district tiers.
Compliance and privacy
Built to meet your district standards
Student names are anonymized before any data reaches our AI providers, and our agreements with those providers prohibit using student work for model training.
Used at 1,000+ schools
Backed by UC Berkeley
- SOC 2 Type 1 certified
- FERPA Compliant
- COPPA Compliant
- NIST 1.1 Aligned
Press & media
As seen in...
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.
Pricing
Pick the perfect plan for your educators
Start free for up to 100 essays per month. Scale up when you are ready, with plans built for individual teachers, schools, and districts.
Monthly Annual 20% OFF
Standard
For individual educators paying out of pocket who are ready to grade like pros.
$15/month, billed annually
All features in Starter plus
- 350 student submissions per month
- Google Classroom integration
- Handwritten assignments
- Grammar checking
- Class performance dashboard
- Chat & email support with 48-hour response time
Schools & Districts
For bulk user management, institution-wide reporting & analytics, and training.
Based on size
All features in Standard plus
- Unlimited student submissions
- Canvas and Schoology integration
- Shared rubric library
- AI plagiarism detection
- Bulk user management and admin control
- Institution-wide analytics and reporting
- Training and onboarding support
- Priority support with 24-hour response time
Higher Ed & Enterprise
For institutions and corporations with custom needs or API access.
Custom
All features plus
- API access
- Dedicated account manager
- Custom integrations, including learning management systems
- Custom roles & permissions
- Custom training and onboarding support
- Custom analytics & dashboards
- Custom support SLAs
Want to see what Education looks like in 2026?
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Teacher?
Sign up to use CoGrader for free and check if out for yourself it helps you free up time.
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Admin?
Schedule a demo to learn more how you can streamline your grading process and save time.
Explore More CoGrader Tools
AI Rubric Generator
Build a standards-aligned rubric in seconds, then grade essays with it in the same tool.
Build a rubricAI Content Detector
Flag AI-written submissions with evidence-backed detection before you grade.
Check for AI writingGrade My Essay
Send students our free, no-signup essay grader for instant rubric-based feedback.
See the student graderFrequently Asked Questions
CoGrader: the AI Teaching Assistant.
What is an AI essay grader?
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.
Is AI essay grading accurate?
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.
Is CoGrader backed by research?
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.
How does CoGrader compare to ChatGPT for grading essays?
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.
Can teachers trust AI to grade essays?
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.
Is CoGrader free?
Yes. The Starter plan is free forever and includes 100 student submissions per month, the rubric builder, FERPA compliance, help center access, and 14 days of premium features. No credit card required to start. Paid plans unlock more submissions, more integrations, and class analytics.
Does CoGrader work with Google Classroom?
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.
Does CoGrader support my state's rubrics?
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.
Can CoGrader grade AP essays?
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.
Does CoGrader detect AI-written essays?
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.
How long does it take to grade an essay with CoGrader?
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.
Is student data safe with CoGrader?
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.
Who is responsible for the final grade?
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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