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HyperFlow-H3-Flash-INT8-ComfyUI

Image-Text-to-Video
MiniMax H3
hyperflow-h3
comfyui
int8
convrot
unofficial
audio-video-generation
text-to-video
image-to-video
reference-to-video
few-step
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HyperFlow-H3-Flash-INT8-ComfyUI / workflows /hyperflow_int8_t2v_sparse.json
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"## HyperFlow H3 Flash INT8: text to video + sparse attention\n\nUnofficial port: HyperFlow H3 Flash's own INT8 (convrot) transformer, converted to ComfyUI's layout and run on ComfyUI's native INT8 kernels. Not an official Video Rebirth, MiniMax or Comfy Org release.\n\n**Custom nodes**: [ComfyUI-HyperFlow-Flash](https://github.com/Video-Rebirth/ComfyUI-HyperFlow-Flash) (official: HyperFlow Sigmas and the two-time patch) and [ComfyUI-HyperFlow-INT8](https://github.com/BennyDaBall930/comfyui_hyperflow_int8_nodes) (HyperFlow INT8 Loader), on a ComfyUI with native MiniMax-H3 and INT8 convrot support.\n\n**Model files**, in `ComfyUI/models/`:\n\n| Folder | File | From |\n|---|---|---|\n| `diffusion_models/` | `minimax_h3_fl2va_hyperflow_flash_int8_convrot.safetensors` | [BennyDaBall/HyperFlow-H3-Flash-INT8-ComfyUI](https://huggingface.co/BennyDaBall/HyperFlow-H3-Flash-INT8-ComfyUI), or convert `fl2va_int8_convrot/` from [VideoRebirthAI/hyperflow-h3-flash](https://huggingface.co/VideoRebirthAI/hyperflow-h3-flash) with `convert_hyperflow_int8.py` |\n| `text_encoders/` | `qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors` | [Comfy-Org/MiniMax-H3](https://huggingface.co/Comfy-Org/MiniMax-H3) |\n| `vae/` | `minimax_h3_video_vae_fp16.safetensors`, `minimax_h3_audio_vae_fp32.safetensors` | [Comfy-Org/MiniMax-H3](https://huggingface.co/Comfy-Org/MiniMax-H3) |\n\n**Recipe**: HyperFlow INT8 Loader (`patcher: legacy`), HyperFlow Sigmas 6 steps, `euler`, Basic Guider (CFG 1, no negative prompt), 1344 x 768, 243 frames (10.1 s at 24 fps), seed 42.\n\n**Sparse attention** (ComfyUI core node *Model Sparse Attention*, between the loader and the guider): method `sol-attn`, tau 1.25, start 0.39, end 1.0, dense blocks `0, 1, 45, 46`, min tokens 12288, extra tokens 256, sink conditioning `exact_kv_and_rows`. Bypass it (Ctrl+B) to run dense.\n\n**Change**: the prompt, size and length (124 frames is 5.2 s at 24 fps); **Seed**; `steps` in **HyperFlow Sigmas** (4 speed, 6 default, 8 quality).\n\n**Keep**: `euler`, CFG 1, no negative prompt; `patcher: legacy` (`auto`, DynamicVRAM, is experimental).\n\n**VRAM**: the weights take about 16 GB and stay resident.\n\n**License**: the weights are a MiniMax H3 Model Derivative under the MiniMax H3 Community License Agreement (territory limits apply). Content you share publicly must be disclosed as AI-generated. Powered by MiniMax H3."
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"text": "## HyperFlow H3 Flash INT8: text to video + sparse attention\n\nUnofficial port: HyperFlow H3 Flash's own INT8 (convrot) transformer, converted to ComfyUI's layout and run on ComfyUI's native INT8 kernels. Not an official Video Rebirth, MiniMax or Comfy Org release.\n\n**Custom nodes**: [ComfyUI-HyperFlow-Flash](https://github.com/Video-Rebirth/ComfyUI-HyperFlow-Flash) (official: HyperFlow Sigmas and the two-time patch) and [ComfyUI-HyperFlow-INT8](https://github.com/BennyDaBall930/comfyui_hyperflow_int8_nodes) (HyperFlow INT8 Loader), on a ComfyUI with native MiniMax-H3 and INT8 convrot support.\n\n**Model files**, in `ComfyUI/models/`:\n\n| Folder | File | From |\n|---|---|---|\n| `diffusion_models/` | `minimax_h3_fl2va_hyperflow_flash_int8_convrot.safetensors` | [BennyDaBall/HyperFlow-H3-Flash-INT8-ComfyUI](https://huggingface.co/BennyDaBall/HyperFlow-H3-Flash-INT8-ComfyUI), or convert `fl2va_int8_convrot/` from [VideoRebirthAI/hyperflow-h3-flash](https://huggingface.co/VideoRebirthAI/hyperflow-h3-flash) with `convert_hyperflow_int8.py` |\n| `text_encoders/` | `qwen3vl_32b_minimax_h3_nvfp4_awq.safetensors` | [Comfy-Org/MiniMax-H3](https://huggingface.co/Comfy-Org/MiniMax-H3) |\n| `vae/` | `minimax_h3_video_vae_fp16.safetensors`, `minimax_h3_audio_vae_fp32.safetensors` | [Comfy-Org/MiniMax-H3](https://huggingface.co/Comfy-Org/MiniMax-H3) |\n\n**Recipe**: HyperFlow INT8 Loader (`patcher: legacy`), HyperFlow Sigmas 6 steps, `euler`, Basic Guider (CFG 1, no negative prompt), 1344 x 768, 243 frames (10.1 s at 24 fps), seed 42.\n\n**Sparse attention** (ComfyUI core node *Model Sparse Attention*, between the loader and the guider): method `sol-attn`, tau 1.25, start 0.39, end 1.0, dense blocks `0, 1, 45, 46`, min tokens 12288, extra tokens 256, sink conditioning `exact_kv_and_rows`. Bypass it (Ctrl+B) to run dense.\n\n**Change**: the prompt, size and length (124 frames is 5.2 s at 24 fps); **Seed**; `steps` in **HyperFlow Sigmas** (4 speed, 6 default, 8 quality).\n\n**Keep**: `euler`, CFG 1, no negative prompt; `patcher: legacy` (`auto`, DynamicVRAM, is experimental).\n\n**VRAM**: the weights take about 16 GB and stay resident.\n\n**License**: the weights are a MiniMax H3 Model Derivative under the MiniMax H3 Community License Agreement (territory limits apply). Content you share publicly must be disclosed as AI-generated. Powered by MiniMax H3."
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