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OpenAI
The US lab behind the GPT models and ChatGPT, closely partnered with Microsoft.
Definition
OpenAI is a US AI research and deployment company founded in 2015 that builds the GPT family of large language models, the o-series reasoning models, and image and video systems, and runs the ChatGPT product and a developer API (a way for other software to call its models). It operates under a capped-profit structure with a deep partnership with Microsoft. Its corporate structure and partnerships evolve quickly and are worth verifying before publishing.