CoGrader4.6 out of 5 stars |
CorrexioPurple Tentacle
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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.
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About
Correxio is a web-based AI grading assistant for teachers working with handwritten or digital assignments. Teachers upload scans, phone photos or PDFs, add an exam and rubric, and may ask the AI to draft a rubric. The system proposes question-level scores, justifications, overall feedback and annotations placed on each student's paper. Teachers review results beside the original, adjust scores and comments, then export class scores as CSV and annotated papers as PDFs. It supports work across subjects, including mathematical notation and code, and can use an answer key as a reference. Student names are masked before AI grading, with exceptions flagged when masking fails. Correxio is available through a browser and an Android app for teachers grading work from middle school through higher education. All scores remain proposals until a teacher reviews them.
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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
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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
Supported
Chromebook
Not Supported
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Audience
K-12 teachers, schools, and school districts, plus higher education instructors
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Audience
Teachers and schools grading written exams and assignments, from middle school to university.
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Supported
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API
Offers API
Not Supported
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Screenshots and Videos |
Screenshots and Videos |
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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
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Pricing
€7.99/month
The free plan includes 30 graded pages per month and adds a Correxio watermark to exported PDFs. Standard costs €7.99/month for 250 pages; Premium costs €13.99/month for 500 pages. Paid plans include tax, have no commitment and can be cancelled at any time.
Free Version
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationCoGrader
Founded: 2023
United States
cograder.com
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Company InformationPurple Tentacle
Founded: 2021
France
www.correxio.com/en
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Alternatives |
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CategoriesCoGrader 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. 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. 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. 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. 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 |
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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
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Integrations
Canvas
Supported
Google Classroom
Supported
Schoology Learning
Supported
eduphoria!
Supported
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Integrations
Canvas
Not Supported
Google Classroom
Not Supported
Schoology Learning
Not Supported
eduphoria!
Not Supported
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