Comfy-Org Bundles Wan 2.1 Into One Local Video Toolkit With 4.2M Downloads
Alibaba's open-source video model lands in ComfyUI as a single repackaged bundle, crossing 4.2 million downloads with workflows for text, image, and control-driven generation.
- Comfy-Org's Wan 2.1 bundle hits 4.2M+ downloads, packaging Alibaba's open video model for ComfyUI.
- Covers T2V, I2V, FLF2V, VACE, Fun Control, MAGREF, Wan-Alpha, and InfiniteTalk in one tree.
- Apache 2.0 licensed, with 1.3B and 14B checkpoints in fp16, bf16, and fp8 scaled variants.
- Wan 2.1 topped VBench with an 86.22% score and supports bilingual English and Chinese text rendering.
- Based on a diffusion transformer with the 3D causal Wan-VAE for temporal consistency.
- Ready-made ComfyUI workflow templates are provided for every task variant.
At the time of writing, the Comfy-Org repository showed more than 4.2 million downloads on Hugging Face. The repository collects Wan 2.1 checkpoints, reduced-precision weights, adapters, and workflow components under ComfyUI’s standard directory structure. Developers gain one source for text-to-video, image-to-video, controlled editing, transparent video, and audio-driven animation pipelines.
Wan 2.1 under the hood
Alibaba Cloud released Wan 2.1 in February 2025 as an open-source family of four foundation-model checkpoints. Its diffusion transformer generates video by iteratively removing noise from a compressed representation of the clip. A 3D causal variational autoencoder called Wan-VAE handles that compression across space and time, reducing the memory required to process full-resolution frames.
According to Alibaba’s launch post, Wan 2.1 scored 86.22% overall on VBench and was the only open-source model among the benchmark’s top five at publication. VBench evaluates qualities such as subject consistency, motion, spatial relationships, color, and prompt alignment. Alibaba also presented Wan 2.1 as the first video model to support text effects in both Chinese and English.
One tree, eight workflow families
Comfy-Org consolidates files from Wan-AI, Alibaba PAI, MAGREF-Video, htdong, MeiGen-AI, and related projects. The repository includes fp16, bf16, and scaled fp8 builds where available, allowing developers to balance compatibility, memory use, and checkpoint size.
| Workflow family | Included models | Primary use |
|---|---|---|
| Text-to-video | wan2.1_t2v_1.3B and wan2.1_t2v_14B |
Generate clips directly from prompts. The 1.3B model targets lower-memory systems; the 14B model provides the higher-capacity path. |
| Image-to-video | wan2.1_i2v_14B at 480p and 720p |
Animate a source image while controlling the resolution and memory requirement. |
| FLF2V | 14B checkpoint at 720p | Generate motion between supplied first and last frames. |
| VACE | 1.3B and 14B checkpoints |
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