Overview

• Thinking Machines Lab confirmed Tulloch’s departure, saying he chose a different path for personal reasons.
• The Wall Street Journal reported he is leaving to join Meta Platforms, while Meta did not comment and Reuters said it could not immediately verify the report.
• In August, the Journal reported Meta first explored acquiring the startup and then pursued Tulloch with a multiyear package that could reach $1.5 billion.
• Meta previously called the Journal’s description of its outreach "inaccurate and ridiculous," and neither company has disclosed any hiring terms.
• Tulloch earlier worked at OpenAI and Facebook’s AI Research Group, highlighting his standing in the intensifying competition for top AI talent.