Meta has snapped up a fifth founding member from Mira Murati's Thinking Machines Lab

Thinking Machines Lab CEO Mira Murati. Bloomberg/Getty Images 2026-04-15T21:48:17.099Z Share Copy link Email Facebook WhatsApp X LinkedIn Bluesky Threads lighning bolt icon An icon in the shape of a lightning bolt.

Impact Link Save Saved Read in app This story is available exclusively to Business Insider subscribers. Become an Insider and start reading now. Have an account? Log in. Joshua Gross, a top engineer at Thinking Machines Lab, has rejoined Meta. It's the latest in a string of departures from the $12 billion startup's founding team. Thinking Machines continues to attract star AI talent and has more than quadrupled its size. AI-generated summary Summaries are generated by an AI model trained on Business Insider's articles. AI may make mistakes or provide inaccurate/incomplete information. We're unable to load that answer right now. Please try again. Why are startups losing talent to Meta? How does Thinking Machines retain talent? Who are key figures in AI talent moves? What strategies attract AI talent to startups? What is the impact of AI talent wars?

Thinking Machines Lab, the startup founded by ex-OpenAI CTO Mira Murati, has lost another founding member to Meta. Loading audio narration... A veteran software engineer, Joshua Gross, built and shipped Thinking Machines Lab's flagship product, Tinker, from "zero-to-one," according to his LinkedIn profile.He joined Meta Superintelligence Labs last month and now leads engineering teams, according to his LinkedIn profile. Gross had previously worked at OpenAI and Meta (formerly Facebook).

Thinking Machines Lab, which raised a huge $2 billion funding round at a $12 billion valuation last year, has become an AI talent hub. It has faced a wave of poaching from larger tech companies as Silicon Valley's AI talent wars grow hotter than ever.Meta has now hired five of its founding members, including cofounder Andrew Tulloch. Meanwhile, OpenAI hired the startup's ex-CTO, Barret Zoph, and a top cybersecurity employee, Jolene Parish.

Thinking Machines Lab has had notable wins of its own. It replaced its CTO with Meta's Soumith Chintala, the creator of the open-source AI project PyTorch, and it quietly hired Neal Wu, a coder who won three gold medals in an Olympiad for programming, Business Insider previously reported.The startup, which is based in San Francisco, has more than quadrupled in size to about 130 staffers since its founding last year, according to a person familiar with the matter. Meta and Thinking Machines Lab declined to comment.Have a tip?

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