CoGrader vs Mathos AI (formerly MathGPTPro)

CoGrader lets K-12 teachers grade written assignments with rubric-aligned scores and feedback drafts for every student. It handles essays, constructed responses, and short answers against your rubric or a state-aligned template. Teachers review and approve every grade before students see it. The free Starter plan covers 100 student submissions per month with no credit card.

Most general AI chatbots will score a pasted essay on a generic scale. CoGrader grades a full class against the rubric you choose, including STAAR, CAASPP, B.E.S.T., Regents, and AP College Board templates, and routes every result through teacher sign-off before export. That workflow is what separates it from dropping text into ChatGPT, especially when you need consistent scores across 30 submissions and one-click export back to Google Classroom.

Classroom teachers use CoGrader for everyday essay assignments and open-ended questions. School and district teams run writing benchmarks across thousands of responses and get scored analytics the same day instead of waiting on hand-scoring vendors. ELA educators grading AP DBQs, LEQs, or literary analysis also get rubrics trained on official College Board scoring guides.

Mathos AI is an education math solver and tutor that turns a photo, typed equation, or word problem into step-by-step solutions, quizzes, flashcards, and animated lesson videos. One prompt can branch into a worked answer, a 5 to 10 second video first frame, practice cards, and an adaptive review path when you miss a concept.

Generic chatbots hand back a final number with little scaffolding. Mathos breaks problems to their core, repairs the prerequisite you missed before repeating the topic, and the AI Tutor watches your whiteboard steps to catch errors at the exact line where reasoning breaks. The company reports 5 million students and 100 million problems solved.

High school and college students use it for calculus, algebra, and physics homework, while parents get session summaries through a dashboard. The product is free to start with a 3-day trial on paid plans, and an enterprise video API tier offers 3,800 generated minutes per month.