What is LUMINA3?

Many Cambodian high school students struggle to find the academic support and study materials they need to prepare for the Baccalaureate II exam. Some can’t afford extra tutoring, while others simply don’t have the time or resources to access the same help as their peers. As high school students ourselves, we saw this problem up close and wanted to change it. That’s why our team at OpenNEXEN created LUMINA3ai, a free and accessible AI study assistant made to support every student. Right now, LUMINA3ai focuses on math. It can answer math BACII-style questions, access past exams from 2014 to 2024, generate exercises, and even create personalized study plans. LUMINA3ai is still in beta, so there may be some bugs here and there, and it’s not yet fully compatible with the Khmer language. We’re working on improving that so Cambodian students can study in whichever language they’re most comfortable with whether that be English or Khmer.

How does this LLM work?

This project is based on the ChatGPT API, it's using gpt-5-mini as its backbone.