Edexia: AI Teaching Assistant
Description
Edexia is an AI-powered essay grading and feedback platform used for marking senior secondary English assessments aligned with Australian and International Baccalaureate curricula, including VCE, HSC, QCE, WACE, and IB English.
The platform applies machine learning models calibrated to official examination rubrics to evaluate student essays and provide written feedback. According to figures published on the company website, the system achieves an 81.2% exact match rate with teacher-assigned grades and is intended to reduce the time educators spend on marking.
Supported assessment types include the HSC Common Module, HSC Module C Craft of Writing, VCE Text Response, VCE Creating Texts, QCE External Assessment, WACE English ATAR, and IB Paper 1, Paper 2, Individual Oral, and HL Essay tasks. Edexia is used by secondary English teachers in Australia and at International Baccalaureate schools to grade student work, generate rubric-aligned feedback, and assist with assessment moderation.
The platform also includes AI detection features intended to identify text generated by other artificial intelligence tools. The service was founded in 2024 by Daniel Gibbon and Nathan Wang, is based in Australia, and is part of the Y Combinator portfolio.
