Andrew Tulloch, co-founder of Thinking Machines Labs, has left to join Meta, marking another twist in the ongoing AI talent wars. Just months ago, reports suggested Tulloch turned down a $1.5B compensation package from Meta — one of the largest in tech history. His departure follows Thinking Machines’ record-breaking seed round and the launch of its first product, a model-tuning toolkit that some market observers viewed as underwhelming.

Thinking Machines is likely building it's own ChatGPT style model given the background of most of its team (shown here). That could position them as an attractive acquisition target from the mega tech corps who are struggling to keep up with Google, Microsoft and OpenAI.