OpenAI is an artificial intelligence research and product company headquartered in San Francisco, California, founded in December 2015 by Sam Altman, Elon Musk, Greg Brockman, Ilya Sutskever, and several other researchers and entrepreneurs, with a stated mission to ensure that Artificial general intelligence benefits humanity. It is widely credited with popularizing large-scale generative language models through its GPT-3 and GPT-4 model series and, in particular, through the November 2022 launch of ChatGPT, which became one of the fastest-adopted consumer software products in history and helped trigger the broader generative AI AI boom (2022-present).
History
OpenAI launched as a nonprofit funded by pledges reported at around one billion dollars from Musk, Altman, and other backers, positioning itself explicitly as a counterweight to what its founders described as risks from AI development concentrated inside a small number of large companies. Musk departed the board in 2018 citing a conflict of interest with Tesla's own AI work, later becoming a public critic and, in 2023, a legal adversary of the organization through a lawsuit alleging it had abandoned its founding mission. In 2019, OpenAI restructured around a "capped-profit" subsidiary, OpenAI LP, to raise the capital its leadership argued large-scale model training required, and secured a multi-billion-dollar investment and cloud-computing partnership with Microsoft (AI) that deepened over subsequent funding rounds. The company released GPT-2 in 2019 under a staged rollout it justified on safety grounds, and GPT-3 in 2020, whose few-shot capabilities drew significant academic and industry attention before ChatGPT's release made the underlying technology broadly visible to the public.
Structure and governance
OpenAI's unusual nonprofit-controlled, capped-profit structure came under intense scrutiny during the OpenAI board crisis of November 2023, when its nonprofit board abruptly removed Altman as chief executive before reinstating him five days later amid employee and investor pressure, an episode widely analyzed as a case study in the tension between AI safety governance and commercial and competitive pressure. The company continued moving toward a more conventional for-profit structure in subsequent years while retaining nonprofit oversight in some form, a restructuring that drew criticism from AI safety advocates and from Musk's ongoing litigation.
Products
Beyond ChatGPT and the GPT series, OpenAI has released the DALL-E image generation series, the Whisper open speech recognition model, the Sora text-to-video model, and, in September 2024, OpenAI o1, its first model in a line built around extended Test-time compute reasoning before answering. The company's API business, which allows developers to build on its models, grew into a major revenue source alongside ChatGPT's consumer subscriptions.
Culture and controversy
OpenAI has been a recurring subject of debate over AI safety practices, with several senior safety-focused researchers, including some who went on to found or join Anthropic, departing over disagreements about the pace of deployment relative to safety work. Its shift from an openly nonprofit, mission-driven posture toward a highly capitalized, competitively secretive frontier lab has been widely discussed as emblematic of broader tensions in the AI industry between commercial scale and the safety commitments many labs profess.