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OpenAI — Founded Date: Dec 2015

Verdictconfirmed99%
1 check · 4/16/2026

The source text explicitly states 'December 11, 2015' as the date of the blog post 'Introducing OpenAI', which is OpenAI's founding announcement. This directly confirms the claimed founding date of 2015-12-11 (December 11, 2015). The source also lists the founding members mentioned in the additional context (Sam Altman, Ilya Sutskever, Greg Brockman, Elon Musk, Wojciech Zaremba, and John Schulman are all mentioned as founders/co-chairs/founding members).

Our claim

entire record
Subject
OpenAI
Property
Founded Date
Value
Dec 2015
Notes
Founded December 11, 2015 by Sam Altman, Ilya Sutskever, Greg Brockman, Elon Musk, Wojciech Zaremski, and John Schulman. Blog post dated Dec 11.

Source evidence

1 src · 1 check
confirmed99%primaryHaiku 4.5 · 4/16/2026

NoteThe source text explicitly states 'December 11, 2015' as the date of the blog post 'Introducing OpenAI', which is OpenAI's founding announcement. This directly confirms the claimed founding date of 2015-12-11 (December 11, 2015). The source also lists the founding members mentioned in the additional context (Sam Altman, Ilya Sutskever, Greg Brockman, Elon Musk, Wojciech Zaremba, and John Schulman are all mentioned as founders/co-chairs/founding members).

Case № f_1Y4HfGVOvAFiled 4/16/2026Confidence 99%