Company That Created ChatGPT Calls for Regulating Artificial Intelligence 1:07

(CNN) -- Twelve days after OpenAI fired Sam Altman as CEO, the company formally announced that it had rehired him.

The company also said it has a new board of directors, made up of chairman Bret Taylor, former co-CEO of Salesforce; former Treasury Secretary Larry Summers; and Quora CEO Adam D'Angelo, who is the only remaining executive on the board that ousted Altman on Nov. 17. Key shareholder Microsoft also got a non-voting observer seat on the board of directors after the company hired Altman and the former OpenAI. Chairman Greg Brockman, only to lose them again to OpenAI a couple of days later, an outcome that CEO Satya Nadella said he agreed with.

OpenAI called the new board "initial," indicating that it will add more directors in the future.

  • ANALYSIS | OpenAI had a turbulent week: Who won and who lost?

FILE PHOTO: Sam Altman attends the Asia-Pacific Economic Cooperation (APEC) CEO Summit in San Francisco, California, United States. November 16, 2023. REUTERS/Carlos Barria

Altman, in an OpenAI blog post, thanked the previous board that fired him for his contributions to the company. He also reinstated Mira Murati as the company's chief technology officer. Murati was named interim CEO for just over a day until the company announced that former Twitch CEO Emmett Shear would take over as CEO, a position he held for less than a week.

The chaos at OpenAI led the vast majority of the company's 800 employees to threaten to quit unless Altman and Brockman were reinstated. A notable signatory was Ilya Sutskever, a former junta member who had played a major role in Altman's ouster. Sustkever later apologized for his actions and said he regretted the decision.

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Sustkever's role as OpenAI's chief scientist seems shaky. He was left off the roster of Altman's leadership team.

"I love and respect Ilya, I believe he is a guiding light in the field and a gem of a human being," Altman wrote in the blog post. "I don't have any ill will towards him. While Ilya will no longer serve on the board of directors, we look forward to continuing our working relationship and are discussing how he can continue his work at OpenAI."

  • Sam Altman returns to OpenAI in a bizarre turn of events

Altman reserved most of the praise for Brockman, who returns to the company after stepping down. He also said that they will formalize in the company's organizational chart the fact that the two are "partners in the management of this company."

"Thank you for everything you've done from the beginning and how you handled things from the moment this started and over the last week," Altman wrote to Brockman.

Altman also praised the company's employees and customers, noting that OpenAI didn't lose any of them during the ordeal.

"I'm sure books will be written about this period and I hope the first thing they say is how wonderful the whole team has been," Altman said. "They stood firm for each other, for this company, and for our mission."

The company should improve its governance structure and hire an independent investigator to determine what went wrong and led to Altman's firing, the CEO said.

In a post on X, Altman acknowledged "real misunderstandings" between himself and board members.

"For my part, it is incredibly important to learn from this experience and apply those learnings as we move forward as a company," Altman wrote in X. "I welcome the board's independent review of all recent events."

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