PFN's AI Writing Instruction System Ronjiro Wins AI Special Award (Learning Support) at 23rd Japan e-Learning Grand Prize

Preferred Networks' AI writing instruction system Ronjiro has won the AI Special Award (Learning Support) at the 23rd Japan e-Learning Grand Prize. Ronjiro uses generative AI including PFN's domestically developed PLaMo foundation model to support high school students' essay and composition learning, providing feedback on logical structure and improvement points in as little as one minute. It has been offered since March 2026 through YP Switch, a joint venture with the Yarakis Switch Group, and is now being introduced in some School IE classrooms nationwide.