The Collaborative AI Teaching Assistant That Streamlines Your Grading
Collaborative AI that keeps you in control while transforming your grading workflow. From STEM to English, get personalized feedback that helps every student succeed.
Grading Results
"Great work on derivatives and integrals. "
See how it works in 3 steps
Getting started with Collinear is easier than you think. No technical expertise required.
Upload Assignments and Jumpstart Your Rubrics
Start by uploading your assignment and let Collinear create a helpful rubric to get you started. You can easily refine it to fit your teaching goals.
Built for Human–AI Collaboration
Collinear combines the best of both worlds by pairing AI’s ability to multitask and process every submission at once with humans’ ability to make the final decisions.
Collinear excels at multitasking
Grades every submission at once, drafts personalized feedback, and identifies trends so you don’t repeat the same work.
You excel at decision making
Bring your judgment, standards, and empathy to review, refine, and approve the AI’s work before students see it.
Start ahead
Begin with a strong first draft instead of a blank page, giving you more time to focus on what matters most: supporting your students.
Responsible AI and Security
Built with trust and transparency at the core—ensuring your data stays secure, protected, and never misused.
Seamless Integration
Chrome extension with secure data transfer connects directly to your existing workflow without disruption.
Privacy Law Compliance
We meet all privacy laws including FERPA, with strict access controls and full audit trails.
Data Protection
Your data remains completely secure and private.
No AI Training
We never use your data to train Collinear or share with third parties.
Data Security
Comprehensive security measures to protect your information.
Frequently asked questions
If you can't find what you're looking for, email our support team at hello@collinear.app
Is Collinear reliable?
Usage data shows that our AI-grading is 95% reliable. That is 95% of the time, the AI grading matches the grading of the human grader. We are working hard to make it 100% reliable.
Is Collinear free and how does referral work?
Yes, you can use Collinear free for 30 days with no commitment! If you refer up to six teachers who sign up, you will receive an extra month free for each one.
How much time can I save using Collinear?
Collinear can reduce grading and feedback time by more than 50%. With AI handling the busywork, you can spend more time engaging with students and making an impact where it counts. Most teachers see hours saved each week, giving you more time for what matters.
Do you train your AI on the submitted data?
No, we never train our AI on your submitted data. Your information is never sold or shared, and we strictly comply with all privacy laws.
How does Collinear keep teachers in control?
Collinear uses a human-in-the-loop system. The AI takes care of the groundwork, like grading drafts, rubric creation, giving feedback, and creating practice problems, but teachers always have the final say. You review, adjust, and approve every grade and comment, so your expertise guides every decision. Why start from scratch when you can begin more than 50% done?
Doesn't AI grading take jobs away from teachers?
Absolute not! Collinear’s AI excels at multitasking, grading dozens of assignments at once with complete consistency and zero bias. But AI never makes final decisions or judgments. Teachers stay in control, using their expertise and understanding to review and make the choices that matter. Together, we bridge the best of both worlds: AI’s efficiency and fairness, paired with the insight and care only teachers can provide.
Ready to transform your teaching?
Join educators across Illinois, Iowa, and nationwide who are already saving time and improving student outcomes with Collinear's AI teaching assistant.