ResearchResearch paperReinforcement Learning · Robotics & Embodied AI1 source · Oct 8, 2026

EvoBelief: Falsifiable World Models for Self-Improving LLM Agents

We introduce EvoBelief, a self-evolving world model that represents environment knowledge as falsifiable hypotheses.

Key points

  • Self-evolving LLM agents typically improve how they act through accumulated experience, reflection, or skills.
  • Yet even procedurally capable agents can fail when their beliefs about environment dynamics are incomplete, incorrect, or outdated.
  • We study a complementary axis of self-evolution: evolving those beliefs during deployment.
  • Across four benchmarks spanning static dynamics, hidden drift, and scientific discovery, EvoBelief improves task performance and reuses learned rules across tasks.

Sources (1)

  • [1]EvoBelief: Falsifiable World Models for Self-Improving LLM Agents
    arXiv (AI, ML, NLP, CV, robotics, multi-agent) · Oct 8, 10:46 PM
    We introduce EvoBelief, a self-evolving world model that represents environment knowledge as falsifiable hypotheses.
    Self-evolving LLM agents typically improve how they act through accumulated experience, reflection, or skills.

Extractive summary: sentences quoted from the sources.

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