[Submitted on 9 Oct 2026]
Title:Visualizing the World Model in an Agent's Value Function
View a PDF of the paper titled Visualizing the World Model in an Agent's Value Function, by Shawheen Naderi and 2 other authors
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Abstract:Could model-free reinforcement learning algorithms actually be learning a model of the environment? In this work, we apply counterfactual interventions which hold everything about a state fixed, besides a targeted change, to explore if the value function of a Proximal Policy Optimization agent forms a world model of the Crafter environment. Despite only being trained to optimize reward, we discover that the value function learns concepts such as the rules governing when a diamond is collectible, water and food having an impact on health, heuristics regarding inventory, and more. Finally, we discuss the safety implications of our visualizations and some shortcomings of current reinforcement learning agents that will prevent us from building truly advanced machine intelligence.
Comments: 20 pages, 15 figues, 3 tables
Subjects:
Artificial Intelligence (cs.AI); Machine Learning (cs.LG)
Cite as: arXiv:2610.14186 [cs.AI]
(or arXiv:2610.14186v1 [cs.AI] for this version)
https://doi.org/10.48550/arXiv.2610.14186
arXiv-issued DOI via DataCite (pending registration)
Submission history
From: Shawheen Naderi [view email] [v1] Fri, 9 Oct 2026 18:01:55 UTC (11,537 KB)
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