AI NewsKevin Weil and Bill Peebles exit OpenAI as company continues to shed âside questsâ
Kevin Weil and Bill Peebles exit OpenAI as company continues to shed âside questsâ
6:01 AM IST · April 18, 2026

OpenAI is losing two of the architects of its most ambitious moonshots. Kevin Weil, who led the companyâs science research initiative, and Bill Peebles, the researcher behind AI video tool Sora, both announced their departures on Friday. The exits come as OpenAI consolidates around enterprise AI and itsforthcoming âsuperapp.â The departures follow OpenAIâs decision to cut back on âside quests,â including customer-facing bets like Sora and OpenAI for Science. Sora, which was losing anestimated $1 million per dayin compute costs, wasshut down last month. OpenAI for Science was the internal research group behindPrism, an AI-powered platform that promised to accelerate scientific discovery. Itâs being absorbed into âother research teams,â according to Weilâssocial media postannouncing the news. âItâs been a mind-expanding two years, from Chief Product Officer to joining the research team and starting OpenAI for Science,â Weil wrote. âAccelerating science will be one of the most stunningly positive outcomes of our push to AGI.â The team had a short and bumpy road after its formal announcement in October 2025. Weil deleted a tweet claiming GPT-5 hadsolved 10 previously unsolved ErdĆsmathematical problems, but that claim fell apart immediately when the mathematician who runs the website erdosproblems.com called it out. Weilâs departure comes a day after his teamreleased GPT-Rosalind, a new model to accelerate life sciences research and drug discovery. In asocial media postannouncing his departure, Peebles credited Sora with igniting a âhuge amount of investment in video across the industry,â and argued that the kind of research that produced the video tool requires space away from the companyâs mainline roadmap. âCultivating entropy is the only way for a research lab to thrive long-term,â he wrote. OpenAI is also losing Srinivas Narayanan, its chief technology officer of enterprise applications,Wired reports. Narayanan reportedly announced the news internally that he was leaving to spend more time with family. This article was updated to include the departure of Srinivas Narayanan.
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