Qwen/Qwen-AgentWorld-35B-A3B

TEXT GENERATIONConcurrency Cost:3Model Size:35.1BQuant:FP8Ctx Length:32kTool Calling:SupportedPublished:Jun 22, 2026License:apache-2.0Architecture:Transformer0.5K Open Weights Cold

Qwen-AgentWorld-35B-A3B is a 35 billion parameter language world model developed by Qwen, built upon the Qwen3.5-35B-A3B-Base architecture. It is specifically designed for agentic environment simulation, predicting next environment states across seven interaction domains including tool calling, search, and software engineering. This model features a massive 262,144 token context length and is trained as a native world model from its continual pre-training stage, making it highly effective for simulating complex, multi-turn agent trajectories.

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Qwen-AgentWorld-35B-A3B: A Native Language World Model

Qwen-AgentWorld-35B-A3B is a 35 billion parameter language world model (LWM) developed by Qwen, specifically engineered for simulating agentic environments. Unlike general-purpose LLMs adapted for world modeling, this model is a native world model, with environment modeling as its core training objective from the initial Continual Pre-Training (CPT) stage. It covers seven distinct agent interaction domains: MCP (tool calling), Search, Terminal, SWE (software engineering), Android, Web, and OS, supporting both text and GUI interactions.

Key Capabilities

  • Unified Domain Coverage: Simulates environments across seven diverse domains within a single model.
  • Long Context Understanding: Features an extensive 262,144 token context length, crucial for multi-turn environment simulation.
  • Generalizable Simulator: Demonstrates zero-shot generalization to out-of-domain environments, such as OpenClaw.
  • Agent Foundation Model: Its LWM RL warm-up transfers effectively to multi-turn, tool-calling agentic tasks across multiple benchmarks.
  • Three-Stage Training: Utilizes a CPT, Supervised Fine-Tuning (SFT), and Reinforcement Learning (RL) pipeline to enhance simulation fidelity.

Good For

  • Agent Development and Testing: Ideal for simulating complex agentic environments to develop and evaluate AI agents.
  • Environment Simulation: Excels at predicting the next environment state given an agent's action and interaction history.
  • Research in Language World Models: Provides a robust platform for exploring and advancing LWM capabilities, especially in agentic settings.