All the top OpenAI figures who have left since the 2023 attempt to oust CEO Sam Altman

Toner left OpenAI's board in November last year.

Since then, she has pointed in interviews to what she saw as Altman's transgressions and why she and others voted to oust him.

Toner's claims include that Altman didn't tell the board before OpenAI released ChatGPT. Instead, board members learned about the launch through Twitter, Toner told The TED AI Show. He also didn't tell the board the truth about OpenAI's ownership structure, she said.

McCauley left OpenAI's board at the same time as Toner, OpenAI said in a statement last November. They were the only women on the company's board.

In May, McCauley and Toner wrote an op-ed in The Economist. In part, they pointed to Altman's reinstatement to the board and "the departure of senior safety-focused talent" — an apparent nod to two major resignations earlier in the month — as evidence that OpenAI can't regulate itself.

Karpathy announced his departure from OpenAI on X in February.

"First of all nothing 'happened' and it's not a result of any particular event, issue or drama," he wrote at the time.

"Actually, being at OpenAI over the last ~year has been really great," he added. Karpathy has since founded Eureka Labs, an AI company focused on education.

Karpathy started at OpenAI in 2015 as a founding research scientist, making him a co-founder of the company. He left in 2017 for a job at Tesla, according to his website. He came back to OpenAI in 2023.

Leike announced his departure from OpenAI in a series of posts on X, formerly known as Twitter, in May. That month, he took a job as a co-lead of Anthropic's alignment science team.

At OpenAI, Leike was co-head of the company's Superalignment team. Leike and co-founder Ilya Sutskever had been charged by OpenAI with leading a team to figure out how to keep AI safe for humans to use. The goal of the Superalignment team is to "ensure AI systems much smarter than humans follow human intent," according to a post on OpenAI's website from last year.

While he praised his team in the posts, he also said: "I have been disagreeing with OpenAI leadership about the company's core priorities for quite some time, until we finally reached a breaking point."

He added in a subsequent post that "over the past years, safety culture and processes have taken a backseat to shiny products."

OpenAI cofounder Sutskever was chief scientist at the company before he announced his departure. He also played a key role in the November effort to remove Altman as CEO, according to reports.

"The company's trajectory has been nothing short of miraculous," Sutskever wrote in a May post on X. He added that he had confidence in Altman, Brockman, and Murati to create artificial general intelligence that "is both safe and beneficial."

Sutskever's LinkedIn page indicates that he left OpenAI in June. He's now a co-founder and chief scientist at Safe Superintelligence, Business Insider reported that month.

Deng, who was vice president of product at OpenAI, left earlier this year after joining the company in 2023, The Information reported in August.

His LinkedIn page still lists him at the company. Deng did not respond to a request for comment.

Schulman left OpenAI in August for a job at Anthropic, he said on X at the time.

"This choice stems from my desire to deepen my focus on AI alignment, and to start a new chapter of my career where I can return to hands-on technical work," he wrote on X.

Schulman was a cofounder and research scientist at OpenAI, according to his website. "It's the first and only company where I've ever worked, other than an internship," he said of OpenAI in his farewell post on X.

Murati, the chief technology officer, said she would leave OpenAI in a memo to the company's employees in September.

"I'm stepping away because I want to create the time and space to do my own exploration," Murati wrote.

Murati also briefly served as CEO in November as OpenAI's board tried to oust Altman. The effort was unsuccessful, and Altman returned to his role days after being fired.

In March, the New York Times reported that Murati had expressed concerns with Altman's leadership to the board before the attempted shakeup. Murati's lawyer told BI at the time: "The claims that she approached the board in an effort to get Mr. Altman fired last year or supported the board's actions are flat wrong."

McGrew has been OpenAI's chief research officer since August and has worked at the company since 2017, according to his LinkedIn page.

"It is time for me to take a break," McGrew wrote in a Wednesday post on X. "There is no better capstone to my work here than shipping o1 to the world," he added, referring to OpenAI's latest model.

McGrew said he would stay at OpenAI for two more months as Mark Chen assumes leadership of the company's research team.

Zoph has been vice president of research, post-training since September 2022, according to his LinkedIn page.

"I got to join right before ChatGPT and helped build the post-training team from scratch with John Schulman and others," Zoph wrote in a post on X on Wednesday, adding that he decided to leave "based on how I want to evolve the next phase of my career."

While OpenAI announced the departures of McGrew, Murati, and Zoph on Wednesday, Altman wrote in a memo to employees that all three "made these decisions independently of each other and amicably."

Weng, OpenAI's vice president of research and safety, announced her departure from the company on Friday in a post on X.

"After working at OpenAI for almost 7 years, I decide to leave. I learned so much and now I'm ready for a reset and something new," she wrote. She also included an email she sent to staff outlining several of the breakthroughs she made in her tenure at the company.

Weng oversaw the team safeguarding against societal risks related to OpenAI's frontier models, which, as she said in her email, has more than 80 "brilliant scientists," engineers, product managers, and policy experts.