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--- |
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license: cc-by-4.0 |
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datasets: |
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- APRIL-AIGC/UltraVideo |
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base_model: |
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- Wan-AI/Wan2.1-T2V-1.3B |
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--- |
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# UltraWan LoRA — ComfyUI Conversion (Unofficial) |
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**This lora only works with the T2V 1.3b model, it does not work with the 14b. The 4k model has some problems, but the 1k model works well.** |
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This repository contains **converted LoRA weights** from the official [**APRIL-AIGC/UltraWan**](https://huggingface.co/APRIL-AIGC/UltraWan) release. |
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The only modification made was converting the `.ckpt` / original format into `.safetensors` compatible with **ComfyUI**. |
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No training, fine-tuning, or architecture changes were performed. |
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--- |
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## 📌 What This Is |
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- ✅ Direct conversion of original UltraWan LoRA weights to **ComfyUI-compatible safetensors format** |
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- ❌ Not trained, modified, or altered in any way beyond the format change |
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- 🎯 For users who want to test **UltraWan LoRA** with ComfyUI’s Text-to-Video pipelines |
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--- |
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## 🔗 Attribution |
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- **Original Model**: [**APRIL-AIGC/UltraWan**](https://huggingface.co/APRIL-AIGC/UltraWan) |
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- **Base Model Architecture**: [TencentARC/Wan](https://github.com/TencentARC/Wan) |
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- **License**: CC-BY-4.0 with Additional Restrictions (see below) |
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> I do **not** claim ownership of the original model, dataset, or LoRA weights. |
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> All credit goes to the **APRIL-AIGC** team and the authors of the [UltraVideo Dataset](https://arxiv.org/abs/2506.13691). |
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--- |
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## 📄 License & Use |
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These weights are subject to the license terms of the **UltraVideo Dataset**, which include: |
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- ❗ **Non-commercial research only** |
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- ⚠️ No redistribution of raw videos or identifiable content |
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- ✅ You may use these weights to run inference in ComfyUI for research/academic purposes |
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- ❌ You may **not** use these weights or outputs for commercial purposes, product development, or monetization |
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Please see the full license in [`LICENSE`](./LICENSE). |
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--- |
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## 🔧 Recommended LoRA Strength |
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| LoRA Version | Recommended Strength | |
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|--------------------|----------------------| |
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| `ultrawan_1k` | **0.25** | |
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| `ultrawan_4k` | **0.5** | |
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> You may experiment with different values, but these are the recommended starting points for best results. |
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--- |
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## 📂 Contents |
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| File | Description | |
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|------|-------------| |
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| `ultrawan_1k_comfy.safetensors` | LoRA converted to safetensors, ready for ComfyUI | |
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| `ultrawan_4k_comfy.safetensors` | LoRA converted to safetensors, ready for ComfyUI | |
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| `LICENSE` | UltraVideo Dataset License (CC-BY-4.0 + Restrictions) | |
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| `README.md` | This file | |
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--- |
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## 🧩 How to Use in ComfyUI |
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Place the `.safetensors` file in: |
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``` |
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ComfyUI/models/loras/ |
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``` |
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Then use a **LoRA Loader** node in your workflow and select the LoRA file from the dropdown menu. |
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--- |
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*This is a community-contributed format conversion. All rights belong to the original creators.* |
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