WorldVLN: Autoregressive World Action Model for Aerial Vision-Language Navigation
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| Format: | Preprint |
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2026
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| author | Zhao, Baining Xu, Jiacheng Feng, Weicheng Zhang, Xin Wang, Zhaolu Wang, Haoyang Ji, Shilong Wang, Ziyou Fang, Jianjie Zheng, Zhiheng Zhang, Weichen Shang, Yu Wu, Wei Gao, Chen Chen, Xinlei Li, Yong |
| author_facet | Zhao, Baining Xu, Jiacheng Feng, Weicheng Zhang, Xin Wang, Zhaolu Wang, Haoyang Ji, Shilong Wang, Ziyou Fang, Jianjie Zheng, Zhiheng Zhang, Weichen Shang, Yu Wu, Wei Gao, Chen Chen, Xinlei Li, Yong |
| contents | Aerial vision-language navigation (VLN) requires agents to follow natural-language instructions through closed-loop perception and action in 3D environments. We argue that aerial VLN can be formulated as a prediction-driven world-action problem: the agent should anticipate latent world evolution and act according to the predicted consequences. To this end, we propose WorldVLN, the first autoregressive world action model for aerial VLN. Unlike full-sequence video-generation world models that generate an entire visual clip, WorldVLN adapts a latent autoregressive video backbone to predict short-horizon world-state transitions and directly decodes them into executable waypoint actions. After each action segment is executed, newly received observations are encoded back into the autoregressive context, enabling closed-loop world-action prediction. We further introduce a two-stage training framework that first grounds the video prior in instruction-conditioned navigation dynamics and then develops Action-aware GRPO, the first reinforcement learning method tailored to autoregressive WAMs, to optimize waypoint decisions through their downstream rollout consequences. On public outdoor and indoor benchmarks, WorldVLN consistently outperforms existing Vision-Language-Action baselines with 12\%+ success-rate gains and larger advantages on challenging cases. It further transfers zero-shot to real drone deployment, suggesting that the proposed WorldVLN offers a promising route for spatial action tasks. Demos and code are available at https://embodiedcity.github.io/WorldVLN/. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_15964 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | WorldVLN: Autoregressive World Action Model for Aerial Vision-Language Navigation Zhao, Baining Xu, Jiacheng Feng, Weicheng Zhang, Xin Wang, Zhaolu Wang, Haoyang Ji, Shilong Wang, Ziyou Fang, Jianjie Zheng, Zhiheng Zhang, Weichen Shang, Yu Wu, Wei Gao, Chen Chen, Xinlei Li, Yong Robotics Computer Vision and Pattern Recognition Aerial vision-language navigation (VLN) requires agents to follow natural-language instructions through closed-loop perception and action in 3D environments. We argue that aerial VLN can be formulated as a prediction-driven world-action problem: the agent should anticipate latent world evolution and act according to the predicted consequences. To this end, we propose WorldVLN, the first autoregressive world action model for aerial VLN. Unlike full-sequence video-generation world models that generate an entire visual clip, WorldVLN adapts a latent autoregressive video backbone to predict short-horizon world-state transitions and directly decodes them into executable waypoint actions. After each action segment is executed, newly received observations are encoded back into the autoregressive context, enabling closed-loop world-action prediction. We further introduce a two-stage training framework that first grounds the video prior in instruction-conditioned navigation dynamics and then develops Action-aware GRPO, the first reinforcement learning method tailored to autoregressive WAMs, to optimize waypoint decisions through their downstream rollout consequences. On public outdoor and indoor benchmarks, WorldVLN consistently outperforms existing Vision-Language-Action baselines with 12\%+ success-rate gains and larger advantages on challenging cases. It further transfers zero-shot to real drone deployment, suggesting that the proposed WorldVLN offers a promising route for spatial action tasks. Demos and code are available at https://embodiedcity.github.io/WorldVLN/. |
| title | WorldVLN: Autoregressive World Action Model for Aerial Vision-Language Navigation |
| topic | Robotics Computer Vision and Pattern Recognition |
| url | https://arxiv.org/abs/2605.15964 |