Aaron DefazioMember of Technical Staff · OpenAIResearcher↗Researcher
Eldan is a mathematician and machine-learning researcher who, at Microsoft Research, co-authored "TinyStories" and the "Textbooks Are All You Need" work behind the Phi small-language-model series, alongside results in high-dimensional probability. He works at OpenAI.
Work and education history is primarily focused on AI-relevant roles and may not be comprehensive.
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Reviewed August 14, 2026 · Checked for accuracy and new information.