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
Daniel Song
Peter Ney
Cristina Menghini
Faizan Ahmad
Aidan Boyd
Nathaniel Li
Ziwen Han
Jean-Christophe Testud
Saisuke Okabayashi
Maeve Ryan
Jinpeng Miao
Hamza Kwisaba
Felix Binder
Spencer Whitman
Jim Gust
Esteban Arcaute
Dhaval Kapil
Ayaz Minhas
Tristan Goodman
Lauren Deason
Alexander Vaughan
Shengjia Zhao
Summer Yue
Publisher
arXiv
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