Meta FAIR Released Code World Model (CWM): A 32-Billion-Parameter Open-Weights LLM, to Advance Research on Code Generation with World Models

2025-09-24 23:22 GMT · 7 months ago aimagpro.com

Meta FAIR released Code World Model (CWM), a 32-billion-parameter dense decoder-only LLM that injects world modeling into code generation by training on execution traces and long-horizon agent–environment interactions—not just static source text. What’s new: learning code by predicting execution? CWM mid-trains on two large families of observation–action trajectories: (1) Python interpreter traces that record local […]
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