CivArchive
    Hunyuan Fast Video - FastHunyuanVideo720pFP8 - FastHunyuanVideo720pFP8
    Preview 50596949

    Here is the ComfyUI workflow pictured:

    https://civarchive.com/models/1112672/fasthunyuanvideo6step

    Posting two derivative HunyuanVideo models here for convenience for others. I originally found them here:

    https://huggingface.co/Kijai/HunyuanVideo_comfy/tree/main

    You can find the VAE there as well ^^^

    Files Section has two files --->

    1. Full model is the Regular HunyuanVideo FP8 model (CFG6, Flow 9).

    2. Pruned model is the FastHunyuanVideo FP8 model (CFG 9, Flow 17).

    N.B. I realize that they are the exact same size, but they are in fact different files for different purposes.

    FastHunyuanVideo also has a LORA.

    LORA: https://huggingface.co/Kijai/HunyuanVideo_comfy/blob/main/hyvideo_FastVideo_LoRA-fp8.safetensors

    Description

    FastHunyuanVideo Model

    FAQ

    Comments (18)

    karlmanJan 10, 2025
    CivitAI

    How much Vram is needed to run FP8? Doe it fit in 12GB ?

    az420
    Author
    Jan 10, 2025· 2 reactions

    Try this maybe:
    https://civitai.com/models/1048302?modelVersionId=1176230
    But with 12gb my guess is you will be rather limited.

    frankwirth157Apr 6, 2025· 1 reaction

    @az420 12 GB is enough. i use 11,6 gb.

    TokalaWolfJan 11, 2025
    CivitAI

    so do I just download this and plug it in, or does it run itself

    az420
    Author
    Jan 11, 2025

    These are the main FP8 checkpoints, you'll want a HV workflow, the VAE, the text_encoders, etc... Download any of the videos you see below and drag them on ComfyUI for a preset example. You might need to configure the paths necessary for loading the various shards though...

    bissonfrederic69429Jan 17, 2025· 1 reaction
    CivitAI

    That would have been good that the image of the workflow contain the workflow but it doesn't

    az420
    Author
    Jan 17, 2025· 1 reaction
    0x384c0Jan 28, 2025
    CivitAI

    This workflow uses SageAttention, which might not work on Windows. Has anyone had success running this on Windows?

    az420
    Author
    Jan 28, 2025· 1 reaction

    You can use one of the other optimizers, they are in the list :)

    sslawek89Feb 3, 2025· 2 reactions

    On my computer managed to install sageattention on Windows. And it works very well.

    Thalion7Feb 13, 2025· 1 reaction

    sagaattention works on windows 10 very well. I have an RTX 4060 ti 16 GB. Here is the link how to install it. https://old.reddit.com/r/StableDiffusion/comments/1h7hunp/how_to_run_hunyuanvideo_on_a_single_24gb_vram_card/

    frankwirth157Apr 6, 2025

    works on W10.

    Devilday666Feb 25, 2025
    CivitAI

    Does this gone into the Lora folder or Checkpoints?

    VelouraMar 2, 2025· 1 reaction

    this is a checkpoint, no lora is this big. It's the fast version of the fp8 model so it requires less steps for good generation

    XavisMar 12, 2025
    CivitAI

    Needs 4x-ultrasharp.pth? how? Should I just download the model and paste in some folder?

    az420
    Author
    Mar 14, 2025

    https://civitai.com/models/116225/4x-ultrasharp
    Put it in the models/ESRGAN folder (spelling might not be perfect there...)

    velantegApr 14, 2025
    CivitAI

    With 32Gb RAM I am getting RAM overflow on launch and ComfyUI crashing.

    az420
    Author
    Apr 14, 2025

    on launch? That doesn't sound like a model problem...

    Checkpoint
    Hunyuan Video

    Details

    Downloads
    5,802
    Platform
    CivitAI
    Platform Status
    Available
    Created
    1/9/2025
    Updated
    5/14/2026
    Deleted
    -

    Files

    Available On (1 platform)

    Same model published on other platforms. May have additional downloads or version variants.