ResearchResearch paperReasoning & Planning · Reinforcement Learning2 sources · Oct 19, 2026

AnyGoal: On World Model Generalization Beyond Expert Rollouts

To answer this, we introduce AnyGoal, a benchmark of goal-shifted task variants built from widely used world-model environments, together with an open-source library.

Key points

  • The goal of a world model is to capture the dynamics of an environment.
  • We study this relationship through the lens of compositional generalization: can a world model recombine familiar state and action factors into valid dynamics?
  • Across multiple environments and world model families, we find that current models consistently exhibit failures under these recombinations.
  • By examining dynamics and representation failures across model families, interaction regimes, and evaluation metrics, we study where current world models generalize and where challenges remain for goal-shifted prediction and planning.

Sources (2)

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