Wei's main focus at OpenAI was o3 and deep research models. He came to the ChatGPT-maker after working on chain-of-thought research at Google. Chung, who overlapped with Wei at Google, worked on deep research and OpenAI's o1 model. His research is focused on reasoning and agents. Sources told Wired that the two had a close working relationship, which could be why Zuckerberg scooped them both up. Like World War II drafters in the U.K., he seems to have a penchant for bringing on groups who've worked together. Got a sensitive tip or confidential documents' We're reporting on the inner workings of the AI industry ' from the companies shaping its future to the people impacted by their decisions. Reach out to Rebecca Bellan at rebecca.bellan@techcrunch.com and Maxwell Zeff at maxwell.zeff@techcrunch.com. For secure communication, you can contact us via Signal at @rebeccabellan.491 and @mzeff.88. Put your brand in front of 10,000+ tech and VC leaders across all three days of Disrupt 2025....
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