Thinking Machines Lab Co-Founders Are Leaving for OpenAI

Two co-founders of Thinking Machines Lab, the startup launched by former OpenAI CTO Mira Murati, are joining OpenAI. An OpenAI representative confirmed the news, and one of the company's executives said the move had been in the works for several weeks.

What happened

Two co-founders are leaving Thinking Machines Lab, the company Mira Murati started after stepping down as OpenAI's CTO. An OpenAI representative confirmed the move, which makes it official news rather than tech-industry rumor. According to TechCrunch, the change looked "sudden" from the outside. But one OpenAI executive said the transition had been in preparation for several weeks, meaning the decision was not spontaneous for either the employees or the company hiring them.

Neither side has disclosed the official reasons the co-founders are leaving Thinking Machines Lab.

Why it matters

Thinking Machines Lab is a young startup that has already made a name for itself with ambitious projects and a strong team led by Murati. Losing two co-founders means losing key people at an early stage, which could weaken the team and may slow development. For OpenAI, by contrast, the move adds experienced engineers who already know how to build innovative AI products.

The case reflects a broader trend. With fierce competition for AI talent, large, well-resourced players can lure specialists away from smaller startups by offering bigger opportunities. That leaves startups with a clear challenge: retain key employees and build a competitive work environment so they don't lose people to larger companies.

What's next

It is not yet known how the co-founders' departure will affect Thinking Machines Lab's plans, or what roles they will take on at OpenAI. Neither company has shared details about the specific projects the new hires will work on, and neither has named the people involved beyond the fact confirmed by the OpenAI representative.

FAQ

Who moved from Thinking Machines Lab to OpenAI?

Two co-founders of Thinking Machines Lab, the startup founded by former OpenAI CTO Mira Murati. An OpenAI representative confirmed the move.

How long was the move in preparation?

According to one OpenAI executive, the transition of the two co-founders had been in preparation for several weeks, so the decision was not spontaneous.

Why did the co-founders leave Thinking Machines Lab?

The official reasons have not been disclosed. Some in the community speculate the decision may be tied to the prospect of working at one of the AI industry's leading companies, taking part in large-scale projects, and more attractive terms. However, this is only speculation and has not been confirmed by the companies.