CivArchive
    Minimax H3 i2v Turbo / FirstBlockCache - v2.0
    NSFW

    Official ComfyUI workflows with fl2va int8 version of the Minimax H3 model generating 8 sec 720p video on rtx4080 16GB + shared RAM: 32GB

    with no optimizations generates for 25 min


    with FirstBlockCache reduces generation to 15 min - lossless quality

    • just works or set mode to H3 Aggressive for even more speed


    with Turbo Lora reduces generation to 6 min - with latest version the quality loss is minimal on 6 steps


    Other changes from official workflow:

    • replaced Load Image node with Image Crop for convenience to make the image in the video aspect ratio to prevent stretching

    • replaced Save Video with VHS version of it to improve the codec quality of the video file

    • added notification node to alert when generation is finished and display generation time

    • added Comfy Kitchen Attention node for optimization

    Updates:

    • changed all models to int8 - better quality

    • updated turbo lora - better quality and speed

    Description

    After tests updates:

    • best model versions

    • best settings

    based on minmax speed and quality, trying to avoid limits on rtx 4080 16GB VRAM + shared 32GB RAM

    FAQ

    Comments (6)

    Enigma38Aug 10, 2026· 1 reaction
    CivitAI

    Wow, it's so cool that you're promoting with Wuwa characters 😍 And the workflow is amazing. Thank you for your hard work.

    faryarjy100Aug 13, 2026
    CivitAI

    hi. does td that you used in workflow work with 16vram+32ram?. it is about 25gb.

    goonjin
    Author
    Aug 13, 2026

    it uses ram as shared vram, and even if the ram is not enough it uses ssd to offload memory because most of the time you don't need the whole thing loaded in the vram, of course it will become slower with the all the memory juggling

    text encoder is used only for initial phase of the video generation which handles prompt understanding so it will not make it much slower and you will have better results in the output

    faryarjy100Aug 14, 2026

    @goonjin thank you for answering

    CodingShotAug 22, 2026
    CivitAI

    which anime to real LoRa are you using?

    goonjin
    Author
    Aug 23, 2026

    just chatgpt image edit with simple prompt "make it realistic"

    Workflows
    MiniMax H3

    Details

    Downloads
    856
    Platform
    CivitAI
    Platform Status
    Available
    Created
    8/10/2026
    Updated
    8/28/2026
    Deleted
    -

    Files

    minimaxH3I2vTurbo_v20.json

    Mirrors

    CivitAI (1 mirrors)

    minimaxH3I2vTurbo_v20.json

    Mirrors

    CivitAI (1 mirrors)

    minimaxH3I2vTurbo_v20.json

    Mirrors

    CivitAI (1 mirrors)

    minimaxH3I2vTurbo_v20.json

    Mirrors

    CivitAI (1 mirrors)