OpenAI

OpenAI is the AI company founded in 2015 by Sam Altman, Elon Musk, Greg Brockman, Ilya Sutskever, and others, with a stated mission of developing AGI for humanity's benefit. The company has reshaped the industry repeatedly through ChatGPT, GPT-4, GPT-5, and the reasoning-focused OpenAI o1 and OpenAI o3 line. Its post-2023 strategic partnership with Microsoft AI dramatically expanded its compute and distribution. In 2025 it stepped into the Open-source Race for the first time by releasing GPT-OSS as open weight.