Stella Biderman
Executive Director
Staff
Researchers, engineers, and operators supporting open AI science.
Leadership
NLP Team
Evaluation infrastructure, open data and models, training frameworks, and HPC support for internal and external groups.
Research: Open Models & Infrastructure · Evaluation · Multilingual NLP · AI for Science
Interpretability Team
Interpretability methods, training dynamics, data attribution, open-weight safety, and behavioral safety.
Research: Interpretability Over Time · Open-Weight Safety · Behavioral Safety
Operations
Celia Ashbaugh
Assistant to the Executive Director