| --- |
| license: other |
| license_name: minimax-h3-community-license-agreement |
| license_link: https://huggingface.co/MiniMaxAI/MiniMax-H3/blob/main/LICENSE |
| tags: |
| - comfyui |
| - diffusion-single-file |
| base_model: |
| - MiniMaxAI/MiniMax-H3 |
| - FastVideo/FastVideo-FastH3-Trim-8-Step |
| --- |
| |
| # FastVideo FastH3 Trim |
|
|
| Repackaged model files for ComfyUI. |
|
|
| Original model repository: https://huggingface.co/FastVideo/FastVideo-FastH3-Trim-8-Step |
|
|
| FastH3 Trim is an experimental pruned FastH3 model: 42 transformer blocks instead of 50 and a rank-16 timestep |
| conditioning, sampled in 8 steps. It is 4.2× smaller than base H3 and faster than FastH3 V2. |
|
|
| Use the **FastVideo FastH3: Text to Video** template (ComfyUI 0.36.0 or later) and pick one of the files below in |
| its `UNETLoader`. Keep the template's sampler settings: 8 steps, `res_multistep`, `simple`, and the |
| `MiniMaxH3SigmaShift` node at 10 (video) and 3 (audio). |
|
|
| | Diffusion model | Size | Use it on | |
| |---|---:|---| |
| | `fastvideo_fasth3_trim_8step_nvfp4.safetensors` | 11.9 GB | NVIDIA Blackwell: RTX 50 series, RTX PRO 6000, DGX Spark | |
| | `fastvideo_fasth3_trim_8step_fp8.safetensors` | 19.7 GB | NVIDIA Ada and newer: RTX 40 series | |
| | `fastvideo_fasth3_trim_8step_int8_convrot.safetensors` | 18.9 GB | Any recent NVIDIA GPU; matches the template's default format | |
| | `fastvideo_fasth3_trim_8step_bf16.safetensors` | 37.5 GB | Reference quality, or for converting to other formats | |
|
|
| Place the files in the following folders: |
|
|
| ``` |
| 📂 ComfyUI/ |
| └── 📂 models/ |
| ├── 📂 diffusion_models/ |
| │ ├── fastvideo_fasth3_trim_8step_bf16.safetensors |
| │ ├── fastvideo_fasth3_trim_8step_fp8.safetensors |
| │ ├── fastvideo_fasth3_trim_8step_int8_convrot.safetensors |
| │ └── fastvideo_fasth3_trim_8step_nvfp4.safetensors |
| ├── 📂 text_encoders/ |
| │ ├── qwen3vl_32b_minimax_h3_bf16.safetensors |
| │ ├── qwen3vl_32b_minimax_h3_int8_convrot.safetensors |
| │ └── qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors |
| ├── 📂 vae/ |
| │ ├── minimax_h3_audio_vae_fp32.safetensors |
| │ ├── minimax_h3_video_vae_fp16.safetensors |
| │ └── minimax_h3_video_vae_int8_convrot.safetensors |
| ``` |
|
|
