OpenAI — Founded Date: Dec 2015

NoteThe source directly confirms the founding date of December 11, 2015. The blog post 'Introducing OpenAI' is dated December 11, 2015, and announces OpenAI's founding. The claim's date format (2015-12-11) is equivalent to the source's format (December 11, 2015) — this is a standard ISO 8601 vs. written-out date difference, not a contradiction. The source also confirms several of the founding members mentioned in the additional context (Greg Brockman, Ilya Sutskever, Sam Altman, Elon Musk, John Schulman, and Wojciech Zaremba are all listed as founders/co-chairs/founding members).