# World models that ignore human beliefs predict the wrong actions, new research shows > Source: > Published: 2026-08-22 09:00:20+00:00 # World models that ignore human beliefs predict the wrong actions, new research shows By Jonathan KemperSource: [The Decoder](https://the-decoder.com) Current world models like [Sora](/compare/sora-vs-runway) or Genie only simulate physics and ignore what people think, want, or feel. The new "Mental World Modeling" framework adds mental variables like beliefs and intentions. Even weaker language models using this approach outperform stronger models without mental modeling. The biggest bottleneck: predicting how physical and mental states change together. The article [World models that ignore human beliefs predict the wrong actions, new research shows](https://the-decoder.com/world-models-that-ignore-human-beliefs-predict-the-wrong-actions-new-research-shows/) appeared first on [The Decoder](https://the-decoder.com). Get AI news in your inbox Daily digest of what matters in AI.