Chris J. MaddisonAssistant Professor · University of TorontoResearcher↗Both at University of Toronto

Researcher · Academic
Mathematical AI Safety InstituteFounding Scientific Director
University of TorontoProfessor of Mathematics (on leave)
🇨🇦 CanadianBorn 1988–
Tsimerman is a Fields Medal-winning mathematician whose work helped prove the André–Oort conjecture, uncovering patterns among special solutions to polynomial equations. He expanded methods for controlling complicated geometric behavior and is applying mathematics to the safety of powerful AI.
Mathematical AI Safety Institute2026-present
University of Toronto2014-present
Harvard University2011-2014Work and education history is primarily focused on AI-relevant roles and may not be comprehensive.
Tsimerman will serve as MAISI’s founding Scientific Director and continue collaborating with OpenAI.
October 15, 2026UpdateJacob Tsimerman announces plans to join OpenAITsimerman initially planned to join OpenAI; in October he clarified he would instead work full-time at MAISI.
July 23, 2026Based on public sources. If accuracy is important, verify details using the links or references.
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Reviewed August 15, 2026 · Checked for accuracy and new information.