RESOLVING THE LEDGER
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See the full story · 2 sourcesOpenAI continues to undergo significant leadership shake-ups, with multiple senior executives departing in 2026. Mandel NGAN / AFP via Getty Images
OpenAI has undergone significant leadership changes, with multiple executives departing in 2026.
Notable exits include Denise Dresser, Brad Lightcap, and Fidji Simo.
OpenAI also saw reshuffling in its safety operations and ethics teams.
OpenAI's revolving door is still spinning.
The ChatGPT maker has lost a string of senior leaders in 2026, including former operating chief Brad Lightcap, applications CEO Fidji Simo, chief revenue officer Denise Dresser, and executives overseeing marketing, enterprise products, science, safety, and ethics. Some left to start new ventures, while some stepped back for health reasons.
The departures follow another year of turnover in 2025 , when OpenAI lost its chief people and communications officers, a top researcher who went on to launch an AI-science startup, and at least seven researchers recruited by Meta.
Here are the prominent OpenAI leaders who have headed for the exits in 2026.
Denise Dresser
Denise Dresser is leaving her role as OpenAI's chief revenue officer. Bloomberg/Getty Images
OpenAI announced in August that its chief revenue officer, Denise Dresser , is leaving the company. Dresser began the position in December 2025.
"Denise will leave OpenAI to pursue other opportunities following a transition period, during which she will work closely with the business team to support our customers," the company wrote in a blog post.
Dali Rajic will take over the role.
Brad Lightcap
Leigh Vogel/Getty Images The Hill & Valley Forum
Brad Lightcap , who worked at OpenAI since 2018, announced his departure on X in August. Lightcap told his followers that he's leaving the startup "to start something new."
"Over the last few months, I've been focused on the next horizon and what would stand in the way of mission success. I believe there are a few important new things the world will need to get right as we enter this next period," Lightcap said on X. "I'll have more to share soon, but I believe in OpenAI more than ever and am excited to help you all advance the mission from a different vantage point."
Lightcap began his tenure at OpenAI as chief financial officer before transitioning to chief operating officer in 2022. In April, OpenAI said Lightcap moved to a role focused on special projects.
Fidji Simo
JOEL SAGET/AFP via Getty Images
In July, Fidji Simo announced she would step down from her role as OpenAI's CEO of applications and transition to a part-time advisor role. Simo, who was diagnosed with postural tachycardia syndrome , or POTS, in 2019, initially took medical leave in April.
"Over the last seven years, I've spent countless hours in doctors' offices, dealing with symptoms, treatments, insurance, uncertainty, and all the invisible work that comes with being a patient," Simo wrote on X in July. "Like millions of others living with chronic illness, I've experienced firsthand how difficult healthcare can be to navigate, even when you have every possible advantage."
Simo became the CEO of applications in May 2025.
Kevin Weil
Bloomberg/Getty Images
Kevin Weil announced his departure on X in April.
"It's been a mind-expanding two years, from Chief Product Officer to joining the research team and starting OpenAI for Science," he said.
Weil first joined OpenAI in 2024 as its chief product officer. He later served as vice president of OpenAI for Science, an initiative to build an AI-powered platform to accelerate scientific discovery, starting in October 2025.
Currently, Weil heads an AI science startup that sought a valuation of at least $750 million.
Bill Peebles
Bill Peebles worked as a research scientist at OpenAI for three years before leaving the company in April 2026. Peebles served as the head of Sora, an AI model that uses text prompts to create videos.
"While the original Sora ignited a huge amount of investment in video across the industry, it took the next generation of models with Sora 2 for the broader public to understand the transformation happening," Peeble said on X. "I'm proud of all the sleepless nights before and after the launch this team endured in order to deploy the technology in a responsible way and help steer societal norms."
The video generation AI model first became available to users in December 2024. Nine months later, OpenAI released an updated model — Sora 2 — and an app meant to rival social media sites.
Although the app drummed up major hype, its momentum quickly faded.
OpenAI shut down Sora and its app this April.
Srinivas Narayanan
Srinivas Narayanan, OpenAI's chief technology officer for business applications, announced in April that he was leaving after three years.
"Leading the b2b engineering team has been an enormous privilege," Narayanan wrote on LinkedIn. "With the recent/upcoming product launches, this felt like the right time to step back."
Narayanan said he planned to spend time with his parents in India before deciding what to do next. He joined OpenAI as vice president of engineering and led teams working on ChatGPT and the company's enterprise products.
Kate Rouch
Kate Rouch stepped down as OpenAI's chief marketing officer in April to focus on her recovery from breast cancer.
Rouch joined OpenAI in December 2024 after more than a decade at Meta, where she served as global head of brand and product marketing. She took medical leave in 2025 while undergoing treatment, then returned to OpenAI.
OpenAI previously said Rouch could eventually return in a more narrowly defined position when her health allowed, and that the company was searching for a new chief marketing officer.
Barret Zoph
Barret Zoph left OpenAI in June, about five months after returning to lead its enterprise AI sales efforts.
Zoph initially departed OpenAI in September 2024 and cofounded Thinking Machines Lab with former OpenAI chief technology ...
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