VibeGrade

AI-powered essay grading Chrome extension revolutionizing teacher workflows

edtechaieducationgradingchrome-extensionyc-backed

Company Overview

Founded:2023
Location:San Francisco, CA
Website:vibegrade.com
Industry:EdTech, AI Education Technology
Stage:Y Combinator Spring 2025
Team Size:2 founders
Legal Entity:VibeGrade Inc.

Mission Statement

"We don't replace teachers—we help teachers help their students. Our mission is to make education better for everyone involved by giving teachers superpowers through AI."

Key Value Propositions

  • 10x faster essay grading through AI-powered Chrome extension
  • Seamless integration with existing LMS workflows (no new platform required)
  • One-click grading that maintains teacher control and judgment
  • Built-in plagiarism and AI detection capabilities
  • Custom rubric adaptation for personalized grading criteria
  • ±3% accuracy compared to manual teacher grading

VibeGrade represents a groundbreaking approach to educational technology, positioning itself as the "Cursor for Teachers" - an AI-powered Chrome extension that revolutionizes essay grading workflows. Founded by teenage entrepreneurs Daniel Martinez (18) and Musa Aqeel (19), both high school dropouts covered by Forbes, VibeGrade addresses the critical pain point of teacher workload through innovative browser-based AI integration. Unlike traditional EdTech solutions that require separate platforms, VibeGrade works directly within existing Learning Management Systems including Google Classroom, Canvas, and Google Docs. The company has processed over 12,000 essays, saved more than 500 school days of manual grading time, and serves 72 paying customers who all pay out-of-pocket, demonstrating strong product-market fit. Backed by Y Combinator, League of Innovators, and Microsoft, VibeGrade operates in the rapidly expanding AI in education market projected to reach $32.27 billion by 2030.

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