CoGrader

CoGrader

4.6 out of 5 stars
GPTZero

GPTZero

Superhuman
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Visit Website for CoGrader

About

CoGrader is the AI grader for teachers and schools, and the only AI grading platform backed by research funded by the U.S. Department of Education's Institute of Education Sciences (IES). It is the leading platform for grading handwritten work, and it grades essays and other written assignments against the teacher's rubric in minutes, drafting criterion-level feedback that teachers review and approve before students see it. Teachers save up to 80% of their grading time and stay in control of every grade. CoGrader fits into how teachers already work, with multiple workflows and deep integrations with Google Classroom, Canvas, Schoology, Eduphoria, and many other platforms. Use your own rubrics or the CoGrader rubric library. CoGrader is the most accurate scoring platform for the STAAR, with scores within one point of TEA raters in 98.5% of cases. Class dashboards show learning gaps so teachers can plan the next lesson. For schools and districts: AI plagiarism detection, bulk user management, school- and district-wide analytics, and dedicated training and onboarding. SOC 2 Type I certified and FERPA compliant.

About

GPTZero is a leading AI detection platform built to preserve human-authored writing in an era of generative AI. It accurately identifies content written by models such as ChatGPT, GPT-5, Gemini, Claude, and Llama. The platform combines AI detection with writing quality analysis to provide deeper insight into how text was created. GPTZero offers tools like Advanced Scan, plagiarism checking, and hallucination detection for reliable verification. Its Google Docs integration allows users to watch writing replays and identify copy-paste behavior or unnatural typing patterns. GPTZero is widely used in education and professional settings to promote transparency and trust in writing. Independent benchmarks rank GPTZero among the most accurate commercial AI detectors available.

Why CoGrader is Better than GPTZero

GPTZero and CoGrader do different jobs. GPTZero detects whether text was written by AI. CoGrader is the leading AI grader for US K-12 teachers, schools, and districts: it grades student writing against the teacher's rubric and state standards and drafts feedback the teacher approves. - Research-backed: CoGrader is the only AI grading platform backed by research funded by the U.S. Department of Education's Institute of Education Sciences (IES), and the most accurate scoring platform for the STAAR. - Grading and feedback in one place: CoGrader scores every criterion, drafts specific feedback for every student, and also includes AI plagiarism detection for schools and districts. - Handwritten and typed work: the leading platform for grading handwritten work, alongside essays and other written assignments. - Built into the teacher's workflow: deep integrations with Google Classroom, Canvas, Schoology, Eduphoria, and other LMS platforms. Teachers import whole classes of assignments an

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Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

K-12 teachers, schools, and school districts, plus higher education instructors

Audience

GPTZero is designed for educators, students, academic institutions, publishers, writers, enterprises, and organizations that need accurate AI detection, authorship verification, and writing integrity tools

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$0
**Starter** — Free
- 100 submissions/month
- Build & share rubrics
- FERPA compliance
- 14-day premium trial

**Standard** — $15/month (billed annually)
- 350 submissions/month
- Google Classroom integration
- Handwritten assignments
- Grammar checking
- Class performance dashboard

**Schools & Districts** — Custom quote
- Unlimited submissions
- Canvas & Schoology integration
- AI plagiarism detection
- Bulk user management
- Institution-wide analytics
- Priority support

**Higher Ed & Enterprise** — Custom quote
- API access
- Dedicated account manager
- Custom integrations & SLAs
Free Version Supported
Free Trial Supported

Pricing

$12.99/month
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 4.9 / 5
ease 4.6 / 5
features 4.8 / 5
design 4.6 / 5
support 5.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Pros from Real Users

Pros

  • CoGrader allows me to give my students almost instant feedback on their writing samples. Before using CoGrader, it would take me two to three weeks to return writing assignments with usable feedback. Now, I tell CoGrader what to assess on particular writing assessments, and I have feedback that my students can use within minutes. CoGrader has allowed me to be able to give my students multiple writing assignments with usable feedback; whereas before, I only could give just a couple of writing assignments in an 18-week class.
  • As a bilingual teacher, I like that I can link student work to the right rubric easily. It is very bilingual-friendly and supports multiple languages, so I can give clear, consistent feedback in both languages and help my students understand what to improve.
  • Absolutely love the options CoGrader gives to send timely and useful feedback to my students. I have been using for 2 years now and it has cut down my grading time significantly. They even love reading their feedback and setting goals from it. The reports are amazing to get a quick snapshot of where my students are at collectively.
  • I am very pleased with CoGrader. It is a very effective and effecient essay/writing grading and feedback tool. There a many positive features such as rubric-based grading. Teachers may utilize their rubrics or utilize a library of pre-created rubrics. I also appreciate not only the ease of grading but the actionable feedback . The feedback that the students receive promotes writing improvment not just a final grade. Additional effective features include plagerism and AI detection. Finally, the integration with Canvas LMS fits our district's instructional technology infrastructure.
  • I love how many customizations can be made - you can adjust rigor level of grading, the style of feedback students receive (e.g. formal, friendly, etc.), the type of rubric being assessed, the format of feedback, and more. It's also a huge time-saver for grading massive amounts of essays. I also like that teachers can customize and adjust feedback after it's been graded. Co-grader also gives very detailed feedback, so it's super useful for the revision and peer review process.
  • I like that it provides both positive & corrective feedback including examples from my student's work. I often struggle with this as I have so many students' papers to grade, that I only focus on the corrective feedback.
  • I love the ability to fine-tune feedback. I love the rubric creator or the ability to upload my own.
  • I truly love everything about CoGrader. So much so that my team and I pushed our grade levels, schools, and district to begin using it. It truly has been a way to help streamline the grading process, help with understanding the STAAR writing expectations, has taken out the individual, small group, and whole group reteaching process.... I can't say enough great things about it! What I love even more is that they are never "done" helping you. I've had just as much communication and help AFTER our district purchased it, as I did before they purchased it. Hands-down the best writing/grading program we have used and if my district ever foregoes the district plan, I will continue paying for the individual plan myself.

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

CoGrader
Founded: 2023
United States
cograder.com

Company Information

Superhuman
United States
gptzero.me/

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Categories

AI Education Supported

CoGrader is the only AI grading platform backed by research funded by the U.S. Department of Education's Institute of Education Sciences (IES). It applies your rubric to essays and handwritten work, drafts rubric-aligned feedback, and shows class-level learning gaps, with the teacher approving every grade. FERPA compliant and SOC 2 Type I certified.

CoGrader is the AI grader for teachers and schools. It grades essays and written assignments against your rubric, drafts specific feedback for every student, and lets you review and approve each grade before it is shared. Teachers save up to 80% of grading time. Works with Google Classroom, Canvas, and Schoology.

AI Tools Supported

CoGrader is an AI grader for teachers and schools. It scores essays and written assignments against a teacher's rubric and drafts personalized feedback, while the teacher reviews and approves every grade. Saves up to 80% of grading time.

CoGrader is the AI grader for teachers. It takes on the most time-consuming part of teaching, grading written work, by scoring essays against your rubric and drafting feedback you approve. Save up to 80% of grading time, spot learning gaps on class dashboards, and keep full control of every grade.

Education Supported

CoGrader is the AI grader for teachers and schools, backed by research funded by the U.S. Department of Education's Institute of Education Sciences (IES). It grades handwritten work, essays, and written assignments against your rubric, drafts feedback that teachers review and approve, and cuts grading time by up to 80%. Integrates with Google Classroom, Canvas, Schoology, and Eduphoria. SOC 2 Type I and FERPA compliant.

Gradebook Supported

CoGrader is an AI grader, not a full gradebook: it works alongside the LMS you already use (Google Classroom, Canvas, Schoology) and speeds up the slowest part of grading, which is scoring written work and writing feedback. Teachers grade essays against their own rubric in minutes and approve every score.

K-12 Supported

CoGrader is the AI grader built for K-12 teachers, schools, and districts, and the leading platform for grading handwritten work. Grade essays and written assignments against your rubric, give every student specific feedback, and save up to 80% of grading time. Backed by research funded by the U.S. Department of Education's Institute of Education Sciences (IES). FERPA compliant and SOC 2 Type I certified.

Categories

AI Tools Supported
ChatGPT Apps Supported

Gradebook Features

Attendance Tracking Not Supported
Class Summary Supported
Curve Scores Not Supported
Grade Calculations Not Supported
Individualized Assessments Supported
Lesson Planning Not Supported
Parent Portal Not Supported
Progress Reports Supported
Report Cards Not Supported
Teacher Dashboard Supported
Weighted Assignments Not Supported

K-12 Features

Attendance Tracking Not Supported
Classroom Management Not Supported
Communication Management Not Supported
Curriculum Management Not Supported
Enrollment Management Not Supported
Financial Management Not Supported
Parent Portal Not Supported
Progress Reports Supported
Skill Testing Not Supported
Student Information / Records Not Supported

Integrations

Canvas Supported
Google Classroom Supported
Axis LMS Not Supported
Blocksi Not Supported
BypassGPT Not Supported
ChatGPT Not Supported
Claude Not Supported
Claude Duet Not Supported
Claude for Legal Not Supported
GPT-3 Not Supported
GPT-4 Not Supported
Gemini Not Supported
Google Docs Not Supported
Grok Not Supported
Llama Not Supported
Llama 4 Maverick Not Supported
Phrasly Not Supported
Rephrasy Not Supported
Schoology Learning Supported
ShadowGPT Not Supported

Integrations

Canvas Supported
Google Classroom Supported
Axis LMS Supported
Blocksi Supported
BypassGPT Supported
ChatGPT Supported
Claude Supported
Claude Duet Supported
Claude for Legal Supported
GPT-3 Supported
GPT-4 Supported
Gemini Supported
Google Docs Supported
Grok Supported
Llama Supported
Llama 4 Maverick Supported
Phrasly Supported
Rephrasy Supported
Schoology Learning Not Supported
ShadowGPT Supported
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