Class Companion: We Tested the AI Tool Grading 1.7 Million Students' Work
Grading 150 essays over the weekend. Returning feedback a week later to students who've already forgotten what they wrote. If this sounds familiar — Class Companion was built to solve exactly that. We broke down every feature, tested the workflow, and talked to the data.
GPT-4 powered · Panorama-backed
📋 Table of Contents
What Is Class Companion?
Class Companion is an AI-powered platform that provides students with personalized practice and instant feedback. Think of it as a teaching assistant who never sleeps and can give every student immediate, detailed help on their assignments. It pairs naturally with scheduling tools like RTI Scheduler — which manages when students get intervention time, while Class Companion handles what happens during it.
Unlike generic chatbots like ChatGPT, Class Companion is purpose-built for schools. The platform offers every student 1:1 instruction through AI tutoring, instant feedback, and instant grading — designed to boost learning outcomes and engagement across subjects, from kindergarten through higher education.
📌 Quick Overview
| Platform | Class Companion (classcompanion.com) |
| Type | AI-Powered Grading, Feedback & Tutoring |
| AI Model | OpenAI GPT-4 |
| Users | 70,000 teachers · 1.7 million students |
| Grade Levels | K-12 (some higher ed use) |
| Pricing | Free for teachers · Paid school/district plans |
| Funding | $4M seed (Index Ventures, OpenAI Startup Fund) |
| Parent Company | Panorama Education (acquired April 2025) |
| LMS Integration | Canvas, Schoology, Google Classroom (paid) |
| Privacy | FERPA, COPPA, Student Privacy Pledge compliant |
| Co-Founders | Avery Pan & Jack Forbes |
The Origin Story
Class Companion began when co-founder Avery Pan explored ways to help her Deerfield High School teachers, as well as her mom and mother-in-law, both former English teachers. As a writing tutor, Pan understood the demands of providing detailed feedback. She teamed up with Jack Forbes, former founder of a Y-Combinator-backed company and tech lead at Masterclass, whose own mom works at Bainbridge High School.
When ChatGPT sparked widespread concern about cheating in classrooms, Pan and Forbes connected over a shared belief: AI could be harnessed to serve teachers and students for the better. They resolved to build a tool reflecting teacher priorities.
The platform launched publicly with $4M in seed funding led by Index Ventures, with participation from the OpenAI Startup Fund and notable angels including Andrej Karpathy, founding Research Scientist at OpenAI and former Senior Director of AI at Tesla.
How Does Class Companion Work?
The workflow is intuitive, even for teachers with zero tech background.
Create an Assignment
Generate assignments with AI in seconds, upload existing ones, or browse a public content library of 10,000+ assignments and 500+ rubrics. Load a text — say, a short story — then create questions and a rubric for AI assessment, with or without AI assistance.
Customize the AI's Behavior
This is where teachers maintain full control. Select the Feedback Mode — choose whether the AI corrects grammar, checks logic, or only gives hints. Set Restrictions — tell the AI "Do not give the answer directly," forcing students to do the heavy lifting. Create a Rubric — input your grading criteria, and the AI assesses student work against your specific standards.
Students Complete the Work
Share a link or class code with students. As they work, they can request AI help at any point. The AI distinguishes between genuine questions and attempts to extract answers, guiding students to think critically rather than handing them solutions.
Instant Feedback and Iteration
Students get multiple chances to submit and revise based on real-time AI feedback. Notably, Class Companion doesn't position the AI as the ultimate authority — students can contest feedback and appeal to the teacher for a final determination. This builds trust, encourages self-advocacy, and transforms feedback from a top-down verdict into a starting point for conversation.
Teacher Insights
Teachers gain visibility into student strengths, growth areas, academic integrity, and engagement patterns. The platform identifies where students struggle most so teachers can target their instruction accordingly.
Key Features
🤖 AI-Powered Instant Feedback & Scoring
Core FeatureStudents receive instant, customizable, rubric-aligned feedback powered by OpenAI's GPT-4 model. The interface is far more classroom-friendly than using GPT-4 directly.
🎓 AI Tutor ("Ditto")
Core FeatureWhen enabled, the AI tutor Ditto encourages students, provides guidance, and helps them interpret feedback — all based on the teacher's instructions. It enables real-time, differentiated coaching for every student simultaneously, whether in class or at home.
📚 Content Library
Time SaverAccess 10,000+ assignments and 500+ rubrics created by experts and fellow teachers. Built-in practice exams include ACT, SAT, CAASPP, STAAR, and AP exams.
📊 Student Insights & Analytics
Data-DrivenDetailed data on student strengths, growth areas, and engagement across individuals, classes, and assignments.
🔒 Response Integrity Detection
Anti-CheatingIdentifies potential dishonesty through paste detection, tab-switching monitoring, typing anomalies, and similar-response flagging.
♿ Accommodations
InclusiveIndividual student accommodations including translation, text-to-speech, reading level adjustments, and more — supporting learners of all abilities.
🔗 LMS Integration
Paid PlansSyncs rosters and grades with Canvas, Schoology, and Google Classroom (available on paid plans).
✍️ Handwriting Support
UniqueTeachers can upload photos of handwritten responses and the platform processes them automatically.
Subjects Supported
| Subject | Use Cases |
|---|---|
| English Language Arts | Essay writing, literary analysis, short-answer comprehension |
| Social Studies & History | AP-style DBQs, LEQs, and SAQs |
| Science | Lab analysis, constructed responses |
| World Languages | Written responses in target languages |
| Test Prep | AP, SAT, ACT, and state-specific exams (CAASPP, STAAR) |
Pricing
Class Companion is free for individual teachers. Paid plans for schools and districts unlock additional features.
| Feature | Free (Individual Teacher) | School/District Plan |
|---|---|---|
| Assignment creation | ✅ | ✅ |
| AI feedback & scoring | ✅ | ✅ |
| AI tutor (Ditto) | ✅ | ✅ |
| Content library | ✅ | ✅ |
| Multiple attempts | ✅ | ✅ |
| Paste detection | ✅ | ✅ |
| LMS integration | ❌ | ✅ |
| Advanced integrity detection | ❌ | ✅ |
| Admin dashboard & usage tracking | ❌ | ✅ |
| Rostering | ❌ | ✅ |
| Priority support & training | ❌ | ✅ |
| Data Privacy Agreements | ❌ | ✅ |
How Students Join and Log In
Joining
Your teacher provides a join code or class link. Sign in with your school Google or Microsoft account. No standalone account creation is needed — the same frictionless access pattern used by other school tools like Blooket, where students join live sessions with a single code and no mandatory sign-up.
Returning Users
Visit classcompanion.com, click "Log In" or "Join," and sign in with school credentials. If your school uses LMS integration, you may access assignments directly through Canvas, Schoology, or Google Classroom.
Does It Actually Work?
The reported results are compelling:
What Teachers Highlight Most
- Time savings: Teachers report spending more time with students now that they can redirect hours previously spent grading toward discussion, projects, and tutorials.
- Increased student motivation: Thousands of teachers observe students who are more motivated to fix mistakes, less fearful of failure, and less likely to cheat.
- Objective-feeling feedback: AI-delivered feedback shifts the dynamic, creating a loop that feels supportive and constructive rather than personal. Students are more receptive when feedback focuses on growth rather than judgment.
Privacy and Security
Class Companion complies with FERPA, COPPA, and state data privacy laws, and is a Student Privacy Pledge signatory. The platform does not market, sell, or rent user personal information, nor use data for advertising. District plans include individual Data Privacy Agreements.
Class Companion vs. Other AI Teaching Tools
| Tool | Primary Use | Free Tier | AI Feedback | AI Tutoring | LMS |
|---|---|---|---|---|---|
| Class Companion | Feedback + tutoring | ✅ | ✅ Rubric-aligned | ✅ (Ditto) | ✅ (Paid) |
| Gradescope | Batch grading | Limited | ✅ Groups similar | ❌ | ✅ |
| Khanmigo | General tutoring | ✅ (varies) | Limited | ✅ | ❌ |
| MagicSchool | Lesson planning | ✅ | Limited | ❌ | ❌ |
| CoGrader | Essay grading | Limited | ✅ | ❌ | ✅ |
The Panorama Education Acquisition
In April 2025, Panorama Education acquired Class Companion, expanding its suite of AI-powered products that help educators understand student, family, and community needs. Class Companion joins a growing toolkit now used by 500+ districts nationwide.
The product continues to operate at classcompanion.com. The Solara integration means the platform now benefits from Panorama's infrastructure, district relationships, and data capabilities. Panorama currently supports 15 million students across 25,000 schools in 2,000 districts.
Who Is Class Companion Best For?
✓ Ideal For
- K-12 teachers across English, Social Studies, Science, and World Languages
- AP teachers needing rubric-aligned practice and feedback at scale
- Districts seeking a privacy-compliant AI classroom tool
- Schools focused on mastery-based learning and student iteration
- Teachers with large class sizes who can't provide individual feedback
✗ May Not Be Ideal For
- Higher education instructors (though some use it successfully)
- Teachers who primarily assign multiple-choice assessments
- Schools that prohibit all AI tool use
How to Get Started
Sign Up Free
Go to classcompanion.com and sign up with your Google or Microsoft school account.
Create Your First Assignment
Use the AI generator, upload your own, or browse the library of 10,000+ assignments.
Set Rubric & Preferences
Configure your grading rubric and feedback preferences — control exactly how the AI responds.
Share with Students
Share the join code with students and review insights as they complete work.
Final Verdict
Class Companion occupies a unique position in edtech: it's not trying to replace teachers, and it's not just another chatbot. It amplifies what a teacher can do — allowing you to guide every student the moment they need it.
— Avery Pan, Co-Founder
With a genuinely usable free tier, GPT-4-powered feedback, mastery-focused design, and Panorama Education's nationwide backing, Class Companion is one of the strongest AI tools available for K-12 classrooms in 2026.
If you're drowning in grading, wanting faster and better feedback, or looking to implement AI responsibly — the free plan makes the barrier to entry virtually zero.
Quick action plan:
- 1 Visit classcompanion.com and create your free teacher account
- 2 Start with one assignment — use the AI generator or upload an existing one
- 3 Set your rubric, customize AI feedback behavior, and share with students
- 4 If you're a school leader, request a district plan quote for LMS integration and advanced features
Frequently Asked Questions
Methodology & Disclosure
Data sources: Class Companion official website and documentation, Panorama Education acquisition announcements, Tech & Learning independent review, published founder interviews, and publicly available platform statistics (March 2026).
Limitations: Student outcome statistics (88%, 95%, 96%) are self-reported platform data. Individual classroom results may vary based on implementation, subject area, and student population.
Disclosure: RAIN AI Services is not affiliated with Class Companion, Panorama Education, or any platform mentioned. This article was written to provide accurate, research-based analysis for informational purposes. No affiliate commissions are received.
This review was compiled through independent research and analysis. Class Companion is a recommended AI teaching tool — ideal for K-12 teachers seeking instant, rubric-aligned feedback at scale. Visit classcompanion.com to create your free account.