Brad Lightcap, OpenAI’s longtime COO, is leaving to ‘start something new’

Brad Lightcap, one of the longest-serving executives at OpenAI, is leaving the powerful AI lab to “start something new.” In an internal message that Lightcap shared online Tuesday, the outgoing executive told OpenAI staff that it was “bittersweet to share that I’ll be moving on from OpenAI to start something new.” Lightcap, who joined the company in 2018, spent four years as OpenAI’s chief financial officer. He then ascended to chief operating officer, where he served from 2022 until earlier this year when, amidst a shakeup of executive roles, he transitioned to lead special projects at the company. Prior to OpenAI, Lightcap also worked with CEO Sam Altman at venture capital firm Y Combinator. “I had the privilege of building the first versions of most of our operations and business teams – from Finance to Legal, People, CorpSec, GTM/Gov, Partnerships, and more,” Lightcap wrote in his message Tuesday. “Among the most rewarding parts of this journey for me has been watching each of these teams mature under brilliant leaders.” In his note, Lightcap also looked ahead and hinted at a future venture while giving scant details as to what it might be. “Over the last few months, I’ve been focused on the next horizon and what would stand in the way of mission success,” Lightcap said. “I believe there are a few important new things the world will need to get right as we enter this next period. 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.” As OpenAI preps for an IPO of industrywide significance, the company has been undergoing a shakeup of top-level executives. In July, the company’s No. 2 executive, Fidji Simo, who led AGI development, announced she would be stepping down. Other executives from less central areas of the company — including Bill Peebles, who formerly headed the company’s now dead video generator Sora, and Kevin Weil, the vice president of the company’s Science vertical — have also recently left the firm. When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence. Lucas is a senior writer at TechCrunch, where he covers artificial intelligence, consumer tech, and startups. He previously covered AI and cybersecurity at Gizmodo. You can contact Lucas by emailing lucas.ropek@techcrunch.com. View Bio

Brad Lightcap, OpenAI’s Chief Operating Officer and one of the most recognizable faces on its senior leadership team, is leaving the company to “start something new,” he announced on Tuesday, representing the latest in a string of executive departures at the ChatGPT maker. Lightcap did not say what the new venture is, but said he’s “not going far,” and described it as involving “a few important new things the world will need to get right” as artificial intelligence becomes more powerful and capable. The departure comes as OpenAI is planning for an initial public offering that could value the San Francisco company at more than $1 trillion. It also comes as agentic AI models such as those made by OpenAI and Anthropic have come under increased scrutiny, following recent revelations that models from the two companies had managed to bypass safeguards and hacked into other systems. Lightcap joined OpenAI in 2018, when few people could have predicted that the company would become a household name after the release of ChatGPT in late 2022. He went on to create the “first versions” of several operations and business teams, he said, including finance, legal, HR, corporate security, go-to-market, and partnerships. Read more [paywall removed for Redditors]: https://fortune.com/2026/08/11/openai-exec-brad-lightcap-leaving-start-something-new/?utm_source=reddit/