# CoGrader > AI grading assistant that scores essays against a teacher's rubric and drafts feedback for the teacher to review. CoGrader is an AI essay grader for teachers and schools. CoGrader imports student submissions from a learning management system, scores them against a chosen rubric and drafts feedback, which the teacher reviews and edits before returning grades. CoGrader also checks originality and summarises class performance. A free plan covers 150 submissions each month. **Best for:** Teachers who assign a lot of writing and want rubric-aligned first-pass scores and comments that they can check and adjust. - Official site: https://cograder.com - Listed in: [Education & Tutoring](https://trendhub.net/ai-tools/category/education-tutoring), [AI Content Detection](https://trendhub.net/ai-tools/category/ai-content-detection) - Last checked: 2026-10-09 (facts taken from cograder.com) - Source page: https://trendhub.net/ai-tools/cograder-ai-essay-grader-teachers ## Key facts - Platforms: Web, Browser extension, API - Pricing model: Freemium - Free plan: Yes - API: Yes - Made by: CoGrader ## What is CoGrader? CoGrader is an AI grading tool for teachers that scores essays and other open-ended student work against a rubric and writes feedback on each submission. A teacher imports an assignment from a learning management system, attaches a rubric from a library of more than 500 aligned to state standards and exams such as AP, STAAR or CAASPP, and runs the grader on the whole class. Each paper comes back with criterion scores, strengths and areas to improve, which the teacher reviews and can change before students see anything. Grades and comments are then pushed back to the gradebook. An originality report flags possible AI-assisted writing and plagiarism, a grammar check marks errors, and class analytics show averages and common growth areas. Handwritten work can be uploaded as photos. A free Starter plan covers 150 submissions a month. ## Key features - **Rubric-Based Grading**: Scores every submission criterion by criterion against the rubric the teacher attaches and explains each score. - **Glow and Grow Feedback**: Drafts comments for each student on what worked and what to improve next. - **Rubric Library and Generator**: Supplies 500-plus rubrics tied to state standards and can build a new standards-aligned rubric. - **Originality Checker**: Reports whether a text looks AI-assisted or matches other sources, with suggested questions to ask the student. - **LMS Sync**: Imports assignments from Google Classroom, Canvas and Schoology and returns grades and feedback to them. - **Class Analytics**: Summarises class averages by criterion and groups students who need reteaching or enrichment. ## How CoGrader works 1. **Import an assignment**: Pull submissions from a connected LMS or upload PDFs, DOCX files or photos of handwriting. 2. **Attach a rubric**: Choose one from the library, bring your own or generate a new one. 3. **Grade the set**: Run the grader on all submissions and read the proposed scores and feedback. 4. **Review and approve**: Adjust any score or comment that you disagree with. 5. **Export**: Send grades and feedback back to the LMS or download a gradebook CSV. ## Use cases - **Grading a Class Set of Essays**: Import two dozen submissions, grade them together and review the proposed scores. - **State Test Writing Practice**: Score practice responses with the same rubric used on the state assessment. - **AP Essay Feedback**: Apply AP Language or AP History rubrics to argument essays, DBQs and LEQs. - **Checking Academic Integrity**: Review an originality report before discussing a suspicious essay with its author. - **Planning Reteaching**: Use criterion averages to decide which writing skill to revisit with the class. ## Things to know - **Teacher review stays in the loop**: The site says every score and comment is reviewed by the teacher before it reaches students. - **Monthly submission caps**: Starter allows 150 submissions a month and Individual 350; school plans list unlimited submissions. - **Some checks are paid**: Handwritten assignments, grammar checking, AI detection and plagiarism detection sit in the Individual plan and above. - **Published validation figures**: CoGrader reports that on 600 Texas STAAR responses its score was within one point of official raters in 98.5% of cases (June 2026). ## FAQs ### What is CoGrader? CoGrader is an AI-powered, rubric-based grading and feedback platform for written assignments. Teachers use it to score essays and generate comments that they review before release. ### What is CoGrader used for? CoGrader is used to grade essays and open-ended responses against a rubric, give students individual feedback, check originality and see class-wide writing trends. ### Is CoGrader free? Yes, CoGrader has a free Starter plan for teachers that allows 150 student submissions per month. Paid Individual, Schools & Districts and Higher Ed & Enterprise plans add more. ### How much does CoGrader cost? CoGrader's Starter plan is free, and school and enterprise plans are quoted by size. The Individual plan price is not given here because its currency could not be confirmed; see the official pricing page. ### Does CoGrader replace the teacher's judgement? No. CoGrader states that each score and comment goes through the teacher first, who can adjust it before students see anything. ### Which LMS platforms does CoGrader work with? CoGrader offers two-way sync with Google Classroom, Canvas and Schoology, and also lists Brightspace, Blackboard, Microsoft Teams, Eduphoria and DMAC Solutions. ### Can CoGrader grade handwritten essays? Yes. CoGrader accepts photos of handwriting as well as PDF and DOCX uploads, though handwritten assignments are listed as an Individual plan feature. ### Does CoGrader detect AI writing? Yes. CoGrader includes an originality checker with AI detection and plagiarism detection, listed among the paid Individual plan features. --- Source: https://trendhub.net/ai-tools/cograder-ai-essay-grader-teachers (trendhub)