#84ResearcherFoundation Models & LLMs

Mark Chen

OpenAI

LLMsMultimodal AIReasoning

USA

BS in Mathematics with Computer Science, MIT.

Jump to Section

Biography

Chief Research Officer at OpenAI. Led DALL-E, Codex and the o1 reasoning model. Co-heads research with Jakub Pachocki.

Shaped OpenAI's multimodal and reasoning lines, from DALL-E through o1.

OpenAI Chief Research Officer, 2025

Sam Altman

#8 · Foundation Models & LLMs

Jakub Pachocki

#75 · Foundation Models & LLMs

Hugo Touvron

#83

Tom Brown

#85