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24 Jun 2026

Paper summary

Paper summary: Qwen-AgentWorld: Language World Models for General Agents

Qwen-AgentWorld models are language world models that predict how agent environments respond across 7 domains, trained on 10M+ real interaction trajectories, and are reported to outperform frontier models at simulation on a new benchmark.

  • A language world model predicts the next state of an environment (tool output, page change) given an action, so agents can be trained or plan against a simulator.
  • Training runs in three stages: continued pre-training, SFT for next-state reasoning, then RL with rubric and rule rewards.

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