
Christian GibsonEngineer
Meta
via Meta
Researcher
AI Researcher, TBD Lab at Meta
Tulloch is a machine-learning engineer who helped build Meta's AI infrastructure and train GPT-4o, GPT-4.5, and o3 at OpenAI. He later co-founded Thinking Machines Lab before returning to Meta's TBD Lab, where he works on superintelligence.
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Meta
Thinking Machines Lab
OpenAI
MetaWork and education history is primarily focused on AI-relevant roles and may not be comprehensive.
Last editorial review: August 8, 2026