The new Fields Medal winner IMO perfect genius Tsimerman officially announced that he has joined OpenAI. On the morning of July 23, local time, the 2026 International Congress of Mathematicians opened in Philadelphia. This year’s four Fields Medal winners were announced - Deng Yu, John Paddon, Jacob Zimmerman and Wang Hong.

The new Fields Medal winner IMO perfect genius Tsimerman officially announced that he has joined OpenAI. On the morning of July 23, local time, the 2026 International Congress of Mathematicians opened in Philadelphia. This year’s four Fields Medal winners were announced - Deng Yu, John Paddon, Jacob Zimmerman and Wang Hong. Among them, Deng Yu and Wang Hong became the first Chinese mathematicians to win the Fields Medal since its establishment, making history. After this press conference for the highest honor in mathematics, a new subject winner announced the next direction of his life: to delve deeper into AI security and join OpenAI soon. This is Jacob Tsimerman. His core capital for winning this award is to reshape the o-minimality theory into a basic research tool for arithmetic geometry and complex algebraic geometry, and successfully prove a number of core conjectures in the academic world, including the algebraic conjecture of Griffith's periodic images and the Andre-Oort conjecture related to Siegel modular varieties, making a significant contribution to the development of number theory. At the post-match press conference, he stated that he would turn to research in the field of AI security and would soon join OpenAI. As soon as the news came out, OpenAI Chief Research Officer Mark Chen and former Microsoft AI Vice President and current OpenAI researcher Sebastien Bubeck both confirmed and expressed their welcome. Mark Chen commented that Tsimerman has top mathematical talent, and his rigorous and prudent attitude and profound and original thinking towards AI safety issues are equally admirable. Tsimerman is a Canadian mathematician who specializes in number theory, arithmetic geometry and transcendental number theory. He has long been engaged in the intersection of these directions and model theory. He was born in 1988. When he was a teenager, he represented Canada in the International Mathematical Olympiad (IMO) in 2003 and 2004, winning gold twice and scoring a perfect score in 2004. He studied at the University of Toronto as an undergraduate, and received a PhD in mathematics from Princeton in 2011. He studied under the famous number theory expert Peter Sarnak. He then worked as a postdoctoral fellow in the Harvard Scholars Association, and has taught in the Department of Mathematics at the University of Toronto since 2014. A mathematician with a perfect IMO background who broke through the core conjectures one by one turned around and plunged into AI security. OpenAI’s talent account is not light. via AI News (author: AI Base)