Who is behind OpenAI?

Dec 2015 –

Who is behind OpenAI?

Shows documented founders, leaders, board members, funders and owners. Not who made decisions, or why.

Dec 2015

Founded by. Dec 2015: Elon Musk founded OpenAI. Co-chair. Greg Brockman founded OpenAI. CTO. Ilya Sutskever founded OpenAI. Research director. Sam Altman founded OpenAI. Co-chair.

Mar 2019 – 17 Nov 2023

Led by. Mar 2019 – 17 Nov 2023: Sam Altman, CEO of OpenAI. Greg Brockman, chair of OpenAI.

17 Nov 2023: Mira Murati, head of OpenAI. Interim CEO.

Since 29 Nov 2023: Sam Altman, CEO of OpenAI. Bret Taylor, chair of OpenAI.

Dec 2015 – Feb 2018

Board. Dec 2015 – Feb 2018: Elon Musk, board member of OpenAI. Co-chair.

Feb 2018 – 17 Nov 2023: Greg Brockman, board member of OpenAI.

Feb 2018 – 29 Nov 2023: Ilya Sutskever, board member of OpenAI.

Mar 2019: Reid Hoffman, board member of OpenAI.

Since Mar 2019: Adam D’Angelo, board member of OpenAI.

29 Nov 2023: Larry Summers, board member of OpenAI.

8 Mar 2024: OpenAI, board members: Fidji Simo and Nicole Seligman.

Dec 2015

Money in. Dec 2015: Amazon funded OpenAI. Donor, through Amazon Web Services (AWS).

Elon Musk funded OpenAI. Donor.

One of the launch donors; together they committed $1 billion. A pledge, not money received; amounts per donor were not given.

Greg Brockman funded OpenAI. Donor.

Infosys funded OpenAI. Donor.

Jessica Livingston funded OpenAI. Donor.

Peter Thiel funded OpenAI. Donor.

Reid Hoffman funded OpenAI. Donor.

2016 – Sep 2020: Elon Musk funded OpenAI. Donor, $44M.

Musk’s lawsuit says more than $44 million; OpenAI says less than $45 million. Both put it at about $44 million.

Oct 2025 –

Owners. Since Oct 2025: Microsoft owns a stake in OpenAI. 27%, as of 31 Dec 2025.

Shows documented founders, leaders, board members, funders and owners. Not who made decisions, or why.

A connection is not evidence of wrongdoing.

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