robbyant/lingbot-world-v2-14b-causal-fast · Hugging Face

Source: https://huggingface.co/robbyant/lingbot-world-v2-14b-causal-fast

Infinite Worlds with Versatile Interactions

Robbyant Team

We presentLingBot-World 2.0(also known asLingBot-World-Infinity), an advanced iteration ofLingBot-Worldfeaturing four distinct upgrades.

• Unbounded Interaction Horizon: Our model achieves an unbounded interaction horizon while maintaining consistent output quality, benefiting from a carefully crafted causal pretraining paradigm.
• Rapid Response Time: Through distilling a real-time variant from the base model, our system guarantees rapid response time, sufficient to drive 720p video streams at 60 fps.
• Highly Diverse Interactive Elements: Compared to the previous version, this update introduces highly diverse interactive elements, comprising a broader spectrum of actions (e.g., attacking, archery, spell-casting, and shooting) alongside a richer variety of text-driven events.
• Agentic Harness: We pioneer the integration of an agentic harness within the domain of world modeling, wherein a pilot agent is tasked with planning and executing character behaviors, while a director agent is responsible for synthesizing novel environmental elements as the scene progresses.

https://huggingface.co/robbyant/lingbot-world-v2-14b-causal-fast#%F0%9F%9A%80-try-it-now🚀 Try it now

The real-time version of LingBot-World-Infinity is available on two platforms. We thankReactorandLingGuangfor their support:

• International (Web): Experience it onReactor.
• Domestic (Mobile): Experience it onLingGuang.

**Note:**Reactor and LingGuang provide a convenient way to try LingBot-World-Infinity in real time, but some functions are missing. In our official setup, the model runs at full capability. To experience our official demo, join us atWAIC 2026.

https://huggingface.co/robbyant/lingbot-world-v2-14b-causal-fast#%F0%9F%94%A5-news🔥 News

• Jul. 9, 2026: 🎉 We release the technical report, inference code, and models for LingBot-World-Infinity.

https://huggingface.co/robbyant/lingbot-world-v2-14b-causal-fast#%F0%9F%93%8B-todo📋 TODO

• Release the causal-fast inference code and model of the 14B model
• Release the causal-pretrained model of the 14B model
• Release the bidirectional model of the 14B model
• Release the causal-fast and causal-pretrained models of the 1.3B model

https://huggingface.co/robbyant/lingbot-world-v2-14b-causal-fast#%E2%9A%99%EF%B8%8F-quick-start⚙️ Quick Start

This codebase is built uponWan2.2. Please refer to their documentation for installation instructions.

https://huggingface.co/robbyant/lingbot-world-v2-14b-causal-fast#installationInstallation

Clone the repo:

git clone https://github.com/robbyant/lingbot-world-v2.git
cd lingbot-world-v2

Install dependencies:

# Ensure torch >= 2.4.0
pip install -r requirements.txt

Installflash\_attn:

pip install flash-attn --no-build-isolation

https://huggingface.co/robbyant/lingbot-world-v2-14b-causal-fast#model-downloadModel Download

ModelModel TypeModel SizeDownload Linkslingbot-world-v2-14b-causal-fastcausal-fast14B🤗HuggingFace🤖ModelScopelingbot-world-v2-14b-causal-pretraincausal-pretrain14BTODO Download models using huggingface-cli:

pip install "huggingface_hub[cli]"
huggingface-cli download robbyant/lingbot-world-v2-14b-causal-fast --local-dir ./lingbot-world-v2-14b-causal-fast

Download models using modelscope-cli:

pip install modelscope
modelscope download robbyant/lingbot-world-v2-14b-causal-fast --local_dir ./lingbot-world-v2-14b-causal-fast

https://huggingface.co/robbyant/lingbot-world-v2-14b-causal-fast#inferenceInference

We providegenerate\.pyfor causal inference with KV caching, which processes video frames chunk-by-chunk instead of all at once.

• causal\_fast— 480P, multi-GPU:torchrun --nproc_per_node=8 generate.py --task i2v-A14B --size 480*832 --ckpt_dir lingbot-world-v2-14b-causal-fast --image examples/03/image.jpg --action_path examples/03 --dit_fsdp --t5_fsdp --ulysses_size 8 --frame_num 361 --local_attn_size 18 --sink_size 6 --prompt "A serene lakeside scene with a lone tree standing in calm water, surrounded by distant snow-capped mountains under a bright blue sky with drifting white clouds — gentle ripples reflect the tree and sky, creating a tranquil, meditative atmosphere."

You can also use the providedrun\_fast\.shscript:

bash run_fast.sh <weights_dir> <frame_num>
# e.g. bash run_fast.sh lingbot-world-v2-14b-causal-fast 361

https://huggingface.co/robbyant/lingbot-world-v2-14b-causal-fast#deploymentDeployment

We do NOT plan to release our deployment code. If you would like to deploy our model yourself, please refer to the LingBot-World deployment inSGLangorflashdreams.

https://huggingface.co/robbyant/lingbot-world-v2-14b-causal-fast#%F0%9F%93%9A-related-projects📚 Related Projects

• LingBot-World

https://huggingface.co/robbyant/lingbot-world-v2-14b-causal-fast#%F0%9F%93%9C-license📜 License

This project is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (CC BY-NC-SA 4.0). The project is available for non-commercial use only: you may share and adapt it with proper attribution, but derivative works must be distributed under the same license. Please refer to theLICENSE filefor the full text, including details on rights and restrictions.

https://huggingface.co/robbyant/lingbot-world-v2-14b-causal-fast#%E2%9C%A8-acknowledgement✨ Acknowledgement

We would like to express our gratitude to the Wan Team for open-sourcing their code and models. Their contributions have been instrumental to the development of this project.

https://huggingface.co/robbyant/lingbot-world-v2-14b-causal-fast#%F0%9F%93%96-citation📖 Citation

If you find this work useful for your research, please cite our paper:

@article{lingbot-world-v2,
      title={Infinite Worlds with Versatile Interactions}, 
      author={Zelin Gao and Qiuyu Wang and Jiapeng Zhu and Jingye Chen and Zichen Liu and Qingyan Bai and Jiahao Wang and Yufeng Yuan and Hanlin Wang and Yichong Lu and Ka Leong Cheng and Haojie Zhang and Jian Gao and Tianrui Feng and Yuzheng Liu and Yao Yao and Yinghao Xu and Xing Zhu and Yujun Shen and Hao Ouyang},
      journal={arXiv preprint arXiv:xxx.xxx},
      year={2026}
}