
Nora BelroseResearcher
EleutherAI
Head of Interpretability
via EleutherAI
Researcher · Executive

Executive Director at EleutherAI
Biderman is a lead contributor to open-source models including GPT-NeoX, BLOOM, and the Pythia suite for studying training dynamics and interpretability. She is executive director of EleutherAI, the grassroots collective turned non-profit research institute.
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Last editorial review: August 18, 2026