Greg Brockman
President & Co-Founder, OpenAI | Architect of OpenAI Supercomputing Infrastructure
President and Co-founder of OpenAI. Former CTO of Stripe where he scaled engineering from 4 to 250 engineers. At OpenAI, he spearheaded the creation of OpenAI Gym, OpenAI Five (which defeated world champions in Dota 2 using deep reinforcement learning), the Azure supercomputer partnership, and led the live developer demonstrations that unveiled GPT-4 and ChatGPT plugins to the world.
Areas of focus
Professional niches
Watch Greg Brockman in Action
Proof of Work
GPT-4 System Developer Keynote & Real-Time Multimodal Demonstrations
Conducted the historic live technical demonstration of GPT-4, parsing a handwritten website mockup sketched on a napkin into functional HTML/JavaScript code in real time, and debugging complex tax calculations across a 16-page IRS document.
Handwritten input legibility and complex nested mathematical tables require multiple-pass validation.
Context: GPT-4 multimodal vision checkpoint with 32k context window and zero-shot visual reasoning.
View missionDota 2 with Large Scale Deep Reinforcement Learning (OpenAI Five)
Led the engineering and systems team that built OpenAI Five, scaling Proximal Policy Optimization (PPO) across 128,000 CPU cores and 256 GPUs playing 180 years of game simulation daily, defeating reigning world champion esports team OG.
Required heavy reward engineering and hero draft restrictions to converge on winning policies in complex game spaces.
Context: 4,096-unit single-layer LSTM processing continuous state-action spaces with 20,000-step time horizons.
View mission