Alex Cui
CTO, Co-founder at GPTZero
Old Toronto, Ontario, Canada
Summary
👤
Senior🎓
Top SchoolAlex Cui is a CTO and co-founder with 11 years of applied machine learning and startup leadership experience, currently building GPTZero to help preserve authentic human content online. He blends deep research chops—from Caltech and UofT graduate work with Raquel Urtasun—with hands-on systems engineering, having shipped production ML models and infrastructure at Waabi, Uber, Facebook and multiple startups. His work spans motion forecasting for autonomous trucks, lightweight deep architectures that cut training time and memory, and practical ML ops that reduced GPU costs and sped up inference in real products. A repeat founder and early-stage VC intern, he pairs product instincts with rigorous evaluation—having presented at ICCV and briefed policy and platform teams on misinformation and polarization. Based in Toronto, he brings a rare mix of academic rigor, production-scale ML, and an interest in responsibly steering AI into everyday use.
11 years of coding experience
5 years of employment as a software developer
California Institute of TechnologyMaster's degree Computer Science, Master's degree Computer Science at University of TorontoStudy Abroad, Study Abroad at University of ChicagoHigh School Diploma, High School Diploma at University of Toronto Schools
English, Shanghainese, Chinese, French
Github Skills (95)
python10
gpu10
machine-learning10
numpy9
neural-network9
audio9
deep-learning9
regression9
tensorflow9
mobilenet9
nlp8
tensor8
csc8
gpu-acceleration8
realtime8
Programming languages (8)
Github contributions (5)
Logikable/Hexagon
Mar 2017 - Jun 2020
Contributions:2 PRs, 2 pushes in 3 years 3 months
doinksta/transparent_latent_gan
Feb 2019 - May 2021
Use supervised learning to illuminate the latent space of GAN for controlled generation and edit
Contributions:10 commits, 4 pushes in 2 years 3 months
supervised-learning
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