Thinking Machines Lab loses two founders to Meta amid $12B valuation

Talent flow has always been the real currency in the AGI race, and this piece suggests that even heavily funded “frontier challenger” startups can struggle to hold onto their founders in the face of Big Tech gravity. Thinking Machines Lab, led by former OpenAI CTO Mira Murati, was positioned as a new independent heavyweight after a record-breaking $2 billion seed round. Losing multiple founding engineers in quick succession—first to Meta, then to OpenAI—signals just how hard it is to sustain a distinct technical culture when incumbents can offer larger labs, integrated products and massive compute budgets.

For Meta, these hires are another step in rebuilding its AI bench after years of brain drain, and come alongside an aggressive push on infrastructure and open‑weight models. For OpenAI, pulling senior people back from rival startups tightens its hold on experience with large‑scale training. The net effect is to slightly re‑centralize top talent inside a small oligopoly of US‑based firms, which may speed near‑term progress on frontier models but makes the ecosystem’s dependency on a few balance sheets even more pronounced.