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Two Thinking Machines Lab Cofounders Are Leaving to Rejoin OpenAI

January 17, 2026
5 min
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By ZadeNor AI Team
Two Thinking Machines Lab Cofounders Are Leaving to Rejoin OpenAI

Two Thinking Machines Lab Cofounders Are Leaving to Rejoin OpenAI

The Great AI Brain Drain: Thinking Machines Cofounders Rejoin OpenAI

In a shocking turn of events, two high-profile cofounders of the AI lab Thinking Machines, Barret Zoph and Luke Metz, are leaving the company to rejoin OpenAI, the creators of the popular chatbot ChatGPT. This move marks a significant blow to Thinking Machines, which has been making waves in the AI space with its innovative products and technology. But what prompted this sudden departure, and what does it mean for the future of AI research and development?

A Tale of Two Companies

Thinking Machines was founded in late 2024 by Zoph, Metz, and Mira Murati, the former chief technology officer of OpenAI. The company's main product, Tinker, allows developers to customize AI models on their own datasets, making it a powerful tool for businesses and researchers alike. With a valuation of $12 billion and talks of a potential $50 billion valuation, Thinking Machines was one of the most promising AI startups in the industry.

Meanwhile, OpenAI has been making headlines with its own AI breakthroughs, including the development of ChatGPT, a conversational AI model that has gained widespread popularity. But despite its success, OpenAI has been facing challenges of its own, including the recent departure of its vice president of research, Jerry Tworek.

The Departure of Zoph and Metz

According to a memo from OpenAI's CEO of applications, Fidji Simo, Zoph and Metz will be rejoining the company in key roles. Zoph will report directly to Simo, while Metz and a third Thinking Machines staffer, Sam Schoenholz, will work under him. The hiring announcement timeline was accelerated, Simo said, so they still have to work out some details about their roles.

But what prompted this sudden departure? A source close to Thinking Machines alleged that Zoph had shared confidential company information with competitors, which led to his firing. However, WIRED was unable to verify this information with Zoph, who did not immediately respond to our request for comment.

The Implications

The departure of Zoph and Metz is a significant blow to Thinking Machines, which has already lost another co-founder, Andrew Tulloch, in November when he took a new job at Meta. The company's main product, Tinker, will likely continue to evolve, but the loss of its founders will undoubtedly impact its future development.

For OpenAI, the hiring of Zoph and Metz is a major win, as it brings back two of its most experienced and talented researchers. With Zoph's expertise in post-training improvements and Metz's contributions to projects like ChatGPT and the o1 AI reasoning model, OpenAI is likely to see significant advancements in its AI research and development.

The Future of AI Research and Development

The departure of Zoph and Metz highlights the intense competition in the AI space, where companies are constantly vying for talent and resources. As AI continues to evolve and improve, we can expect to see more companies like Thinking Machines and OpenAI pushing the boundaries of what is possible.

But what does this mean for the future of AI research and development? With the increasing importance of AI in our daily lives, from healthcare to finance to education, the need for innovative and effective AI solutions has never been greater.

As we look to the future, it's clear that the competition for talent and resources will only continue to intensify. But with the right talent and the right resources, the possibilities for AI research and development are endless.

Conclusion

The departure of Zoph and Metz from Thinking Machines to rejoin OpenAI is a significant development in the AI space, highlighting the intense competition for talent and resources. As AI continues to evolve and improve, we can expect to see more companies pushing the boundaries of what is possible. With the right talent and the right resources, the possibilities for AI research and development are endless.


Source: https://www.wired.com/story/thinking-machines-lab-cofounders-leave-for-openai/

About the Author

ZadeNor AI Team is a leading expert in AI, contributing to cutting-edge research and development in the field.