First perfect LEET scorer vows to solve CSAT live on air amid AI glasses cheating storm

The first person ever to achieve a perfect score on the Law School Admission Test, known as LEET, has declared a head-on response to cheating allegations swirling around AI-powered smart glasses — vowing to solve the Korean language section of the College Scholastic Ability Test, known as the CSAT, in a live broadcast.

The person, identified only as A, a dental school student at Seoul National University who achieved a perfect score across all sections of the 2027 LEET administered in July, announced Thursday through a comment on the YouTube channel "Mimiminu," where they had previously appeared, that they would solve the 2027 CSAT Korean language section in real time via a live stream.

A said they would begin waiting from 8:40 a.m. on the day of the CSAT, Thursday, and would immediately print out the exam paper once it is posted on the Korea Institute for Curriculum and Evaluation website at 10:56 a.m. The entire 80-minute session — from 11 a.m. to 12:20 p.m. — would be broadcast in a single unedited take.

A said specific details, including the supervising personnel, venue and broadcast channel, would be confirmed and announced before Monday.

The bold move comes as allegations of AI glasses-assisted cheating surrounding the top scorer on this year's tax accountant examination have spread rapidly.

The top scorer on the 63rd tax accountant primary examination held in April, identified only as B, answered 159 out of 160 questions correctly, earning 397.5 out of a perfect 400 points. Suspicions arose particularly because B achieved a perfect score in Introduction to Tax Law — a subject where the average score among all test-takers was just 30.18 points and no one else scored above 90 — and also scored perfectly in Introduction to Accounting and Commercial Law.

B denied the allegations in media interviews, saying, "If you could get a perfect score with AI glasses, why would anyone bother studying?" B added that for questions the test-taker did not know, the elimination method was used to select answers.

The suspicion then extended to A, who answered every question correctly in both the verbal reasoning and analytical reasoning sections of the 2027 LEET in July. The doubts deepened because it was the first perfect score across all sections since the test was first administered in 2008 — a record that took 19 years to emerge.

A had previously disclosed receiving a seventh-grade score in the CSAT Korean section in the past, but went on to achieve a perfect score in the Korean section of the 2026 CSAT. A said the LEET was taken to test whether the same study methods would work on other exams.