The system, called "Puddin AI", was developed by Osaka-based startup Valar Intelligence and requires users to write and submit their papers through its platform.

Growing interest from universities

Kyushu University has been experimentally using it in classes while several dozen universities are considering its adoption, according to the company.

How the system works

The system focuses on the process of writing, recording when a user begins writing, their writing speed and the chronological order of their revisions.

When the identification button is pressed, it assesses the "humanness" of a piece of writing using around 200 indicators, such as common human spelling mistakes, pauses taken in between and the estimated amount of time typically required to produce the piece.

Copy and pasting an AI-generated composition drastically shortens the writing process, allowing the system to determine that a particular piece was not written by a human.

Classification categories

The results are divided into three categories: AI, AI-supported and Human. The system handles Japanese, English and four other languages, and it could analyze university assignments, academic papers and corporate documents, according to the developer.

Academic perspective

Andrew John Chapman, an associate professor of energy economics at Kyushu University, said, "I want students to take their time and write their work on their own. This system can verify originality, making fair evaluation possible."