Verified employee & interview reviews

OpenAI Reviews

San Francisco, California

5.0/ 5

3 reviews

OpenAI is an American artificial intelligence (AI) research and deployment organization headquartered in San Francisco, California. Founded in December 2015 by a group of prominent technology leaders and researchers—including Sam Altman, Greg Brockman, Ilya Sutskever, Wojciech Zaremba, and John Schulman—the company was established with the core mission of ensuring that artificial general intelligence (AGI) benefits all of humanity. Initially launched as a non-profit organization to freely collaborate with researchers and public institutions, OpenAI has undergone significant structural transformations over the years to adapt to the massive computational and financial requirements of cutting-edge AI development. In 2019, OpenAI transitioned from a pure non-profit to a "capped-profit" model by establishing a for-profit subsidiary, OpenAI Global LLC. This allowed the company to secure substantial commercial investments and attract top-tier engineering talent through equity incentives while legally capping returns to investors. Microsoft emerged as a primary strategic partner, investing over $13 billion over multiple years to provide the vital cloud infrastructure via Microsoft Azure required to train OpenAI's massive language models. In late 2025, the company further evolved its corporate architecture by adopting a Public Benefit Corporation (PBC) framework known as OpenAI Group PBC. Under this system, the original non-profit was renamed the OpenAI Foundation, retaining a 26% stake and exercising governance through special voting rights, while Microsoft holds a 27% stake, and the remaining 47% belongs to employees and other institutional venture capital firms like Thrive Capital, Sequoia Capital, and SoftBank Group. OpenAI achieved widespread global prominence with the release of ChatGPT in late 2022, a conversational AI model that rapidly catalyzed the generative AI boom. In addition to ChatGPT, OpenAI's product portfolio includes advanced multimodal large language models such as the GPT series, the DALL-E image generation system, the Whisper speech recognition engine, and specialized developer APIs. These systems support enterprise automation, natural language processing, code generation, and complex data analysis across various industries. As a privately held hyper-growth company, OpenAI has raised over $180 billion in total funding across multiple rounds, dramatically driving its valuation into hundreds of billions of dollars. In mid-2026, the company officially announced plans for a highly anticipated initial public offering (IPO) by submitting draft S-1 documents to regulatory authorities. Managed under the leadership of CEO Sam Altman, Chair Bret Taylor, and COO Brad Lightcap, OpenAI employs thousands of professionals across specialized divisions including AI Safety, Engineering, Research, and Applied AI, continuing its efforts to balance public benefit and commercial leadership in the global technology race.