ResearchResearch paperReinforcement Learning · Robotics & Embodied AI · Large Language Models1 source · Oct 20, 2026

Self-Improving Agents with World Model Predictive Paths

We propose a test-time framework, inspired by Model Predictive Path Integral (MPPI) control, that combines multi-branch predictive analysis with experience-based adaptation.

Key points

  • Large language model (LLM) agents are increasingly expected to interact with environments and improve their decisions during deployment.
  • However, how anticipating future outcomes and drawing on accumulated interaction experience can jointly support decision-making remains underexplored.
  • A dual-branch experience memory enables self-improvement: the planner branch refines candidate generation and action selection, while the world model branch improves next-observation prediction.
  • Experiments on ALFWorld and ScienceWorld across three backbones demonstrate the strong overall performance of our method and the effectiveness of experience-guided predictive control.

Sources (1)

  • [1]Self-Improving Agents with World Model Predictive Paths
    arXiv (AI, ML, NLP, CV, robotics, multi-agent) · Oct 20, 09:46 PM
    We propose a test-time framework, inspired by Model Predictive Path Integral (MPPI) control, that combines multi-branch predictive analysis with experience-based adaptation.
    Large language model (LLM) agents are increasingly expected to interact with environments and improve their decisions during deployment.

Extractive summary: sentences quoted from the sources.

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