Greg Brockman

American engineer and entrepreneur, a co-founder and the president of OpenAIOpenAI, prop. n.: The American company that makes ChatGPT and the GPT models. It began in 2015 as a nonprofit research lab and is now a for-profit company overseen by a nonprofit foundation.. He came to it from the payments company Stripe, which he had joined on leaving MIT in 2010 and served as its first chief technology officer; in 2015 he co-founded OpenAI with Sam AltmanSam Altman, prop. n.: An American entrepreneur who co-founded OpenAI and runs it; the company's 2022 release of ChatGPT turned him into one of the public faces of the AI era., Elon MuskElon Musk, prop. n.: A South African-born American entrepreneur who runs Tesla and SpaceX, co-founded OpenAI, founded the AI company xAI, and has long warned that AI could endanger humanity., Ilya SutskeverIlya Sutskever, prop. n.: A Russian-born Israeli-Canadian computer scientist who co-built the AlexNet image recognizer, helped found OpenAI and lead its research until 2024, and now heads the startup Safe Superintelligence Inc. and others. There he was chief technology officer and later chairman and president, and he has been closely involved in its engineering, from the OpenAI Gym toolkit for reinforcement learningreinforcement learning, n.: A way of teaching a computer program by trial and error: it tries actions, earns points for good results and penalties for bad ones, and gradually learns which choices pay off over time. (2016; see GymnasiumGymnasium, prop. n.: A free software library that gives reinforcement learning programs one standard way to plug into practice tasks, from simple games to simulated robots, so methods can be tried on identical problems. It succeeded OpenAI's Gym.) and the Dota 2-playing OpenAI Five to the infrastructure behind GPT-4GPT-4, prop. n.: OpenAI's 2023 language model, a big step up from the one behind the first ChatGPT. It scored well on many professional and academic exams and could also read images. and ChatGPTChatGPT, prop. n.: OpenAI's AI chatbot, released free to the public in November 2022, which answers questions, writes and converses in everyday language. Its sudden popularity began the current AI boom.. During the November 2023 board crisis he was removed as chairman and resigned, returning days later with Altman (see OpenAI leadership crisis (2023)OpenAI leadership crisis (2023), n.: The five days in November 2023 when OpenAI's board fired chief executive Sam Altman, nearly all staff threatened to quit, and he returned with a new board.). In 2025 he helped found and fund Leading the Future, a super PAC network backing a light-touch, federal approach to AI regulation.