Jiarui (Jerry) Xu

Still Learning Machines

jiarui.c.xu@gmail.com

Projects

• Products: Cyber FM *, Overfitting.ai *, NewGrad.ai *
• GBDT Research: JAXBoost, OpenBoost *, Awesome GBDT
• Transformer Research: microTabPFN, Micro RL w/ codenames agents *
• Education: AIpedia.org, transformer101.com *, agentology.org *

* in active development. coming soon in Q1 2026

Writings

• My Bitter Lessons (January 7, 2026)
• Product Lessons I Learned from Teaching People Zoom (November 15, 2020)