Andrew Tulloch, Co-founder of ex-OpenAI CTO Mira Murati's Thinking Machines Lab, refused billionaire Mark Zuckerberg's $1.5-billion (₹13,000 crore) offer to poach him, WSJ reported. Neither Tulloch nor over 50 TML employees approached by Meta agreed to leave the startup. Tulloch previously worked at Meta for 11.5 years and has Bachelor's and Master's degrees from Sydney and Cambridge universities.