RESEARCH
NLP
Code World Model Preparedness Report
September 24, 2025
Abstract
This report documents the preparedness assessment of Code World Model (CWM), a model for code generation and reasoning about code from Meta. We conducted pre-release testing across domains identified in our Frontier AI Framework as potentially presenting catastrophic risks, and also evaluated the model's misaligned propensities. Our assessment found that CWM does not pose additional frontier risks beyond those present in the current AI ecosystem. We therefore release it as an open-weight model.
AUTHORS
Written by
Aidan Boyd
Alexander Vaughan
Ayaz Minhas
Cristina Menghini
Daniel Song
Dhaval Kapil
Esteban Arcaute
Faizan Ahmad
Felix Binder
Hamza Kwisaba
Jean-Christophe Testud
Jim Gust
Jinpeng Miao
Lauren Deason
Maeve Ryan
Nathaniel Li
Peter Ney
Saisuke Okabayashi
Shengjia Zhao
Spencer Whitman
Summer Yue
Tristan Goodman
Ziwen Han
Publisher
arXiv
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