We believe machines can think.
We make GPAI, an AI agent that keeps track of university students’ classes, assignments and exams, and Mathking, a math app for students in Korea.
We started with math problems and have grown to cover students’ whole coursework
Our first product, Mathking, is a math app that grades the solutions students write by hand on the screen and recommends the next problem. Since its 2021 launch it has passed 2.2 million sign-ups, and along the way we wrote 100,000 problems and collected 20 million solving records.
GPAI began with a familiar chore for STEM students: spending hours fitting hundreds of formulas onto a half-page cheat sheet before an exam. We launched it with that data in August 2025, and since September 2026 it reads course materials and helps with assignments and exam prep for students in every major. It passed 1.5 million sign-ups in its first year.
What GPAI does
Knows your course materials
Once a course portal is connected, GPAI pulls in lecture materials, videos, assignments and announcements, and answers from that student’s own courses without asking for uploads every time.
Tells you what’s due before you ask
It points out assignments due today and exams coming up before the student asks, and writes practice questions from the lectures.
Helps you finish the work
It writes reports, study notes and presentation slides, and teammates edit the same document together on one screen.
1.5M+
GPAI sign-ups in the first year
415
U.S. universities with GPAI users
2.2M+
Mathking sign-ups
₩7B
Series B
Products
GPAI
AI agent for university students
gpai.appStudents connect their school’s course portal and GPAI pulls in lecture materials, videos, assignments and announcements. It answers questions from their own courses, flags what is due today, writes reports, study notes and slides, and lets teammates edit the same document together.
Launched August 2025 · 1.5M sign-ups in the first year · 415 U.S. universities
Mathking
Math app for students in Korea, elementary through high school
iammathking.comStudents choose a unit, difficulty and problem type, then solve on the screen by hand. Mathking reads the handwriting, grades the answer and recommends the next problem based on the student’s solving history.
Launched 2021 · 2.2M+ sign-ups
Mathking CLASS
For schools
class.iammathking.comTeachers assign problem sets to a class, see each student’s results and have written answers graded by AI.
Launched 2024 · Research team of 80 teachers in 11 regions
From our founder
“We want to go beyond AI that delivers knowledge and become a true agent that thinks problems through and reasons together with its users.”
Research and results
EMNLP 2025
Our paper on generating math problems with large language models was accepted to the EMNLP 2025 Industry Track. The generated problems had a lower error rate than human-written problems.
Read articleJEE Advanced 2025
GPAI scored 351 out of 360 on the JEE Advanced 2025 exam, the entrance exam for the Indian Institutes of Technology.
Read articleOpenAI startup program
Selected as one of 10 finalists in a startup program run by OpenAI and Korea’s Ministry of SMEs and Startups.
Read articleAAAI 2023
Presented research behind Mathking at AAAI 2023.
Investors
Series B · 2026
- Korea Development Bank
- Kingo Investment Partners
- Company K Partners
- Kolon Investment
Series A · 2021
- KB Investment
- Shinhan Venture Investment
- KT Investment
- Kolon Investment
Pre-Series A · 2020
- KT Investment
Seed
- Mashup Angels
- S Cubic Angels
Recent news
- Sep 1, 2026Turing raises ₩7B Series BNaver News · Press · in Korean
- Aug 12, 2026Mathking wins the KTEA Korea Brand Award in AI education for the third straight yearChosun Edu · Press · in Korean
- Jul 28, 2026Turing upgrades GPAI’s visual agent for STEMepnc.co.kr · Press · in Korean
- May 13, 2026Turing’s STEM AI Agent GPAI Now Used at 415 U.S. Universities as Cumulative Users Grow 10x in Six MonthsAP News · Press