CivArchive
    Base MinimaxH3 (Turbo Merge 8-Step) - comfy_fl2va_pruned
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    Base MinimaxH3 (Turbo Merge)

    This model is unchanged/untrained from the base model listed. The model was quantized from the source FP32/BF16 model. BOTH THE FL2VA and REF2VA models are 8 step models.

    Requirements:

    1. Update CUDA to 13.4.2

    2. Update Pytorch to 13.2

    3. Update at minimum comfy-aimdo, comfy-kitchen

    4. Basic workflow shows how to use both first frame text guided and first frame last frame with comfy kitchen backend node to speed up generation by 60% (This prevents pyattention fallback which is slow)

    pytorch version: 2.13.0+cu132

    xformers version: 0.0.35

    Using xformers attention

    ComfyUI version: 0.35.0

    comfy-aimdo version: 0.5.5

    comfy-kitchen version: 0.2.34

    Consider --disable-dynamic-vram if you are having OOM issues after a few generation or crash when trying to use comfy kitchen vs pyattention

    Note: INT Convrot Group size is 64 vs 256 on the comfy supplied models

    NF4 version of the reference to video/audio model works but the quality is very low

    Description

    FAQ

    Comments (6)

    AnonNameMetooSep 20, 2026
    CivitAI

    Any chance on RTX40608gb+64gbDDR5-5200?

    Felldude
    Author
    Sep 20, 2026· 2 reactions

    I would use the INT8 version, but with offloading you could use the BF16

    Felldude
    Author
    Sep 20, 2026

    INT8 has native support on 40xx and 30xx the other quants do not.

    VelveraSep 20, 2026
    CivitAI

    Sampler settings?

    Felldude
    Author
    Sep 20, 2026

    simple/normal - euler/euler a

    Jojo0GojoSep 21, 2026· 1 reaction
    CivitAI

    Thank you so much, please do also the REF2VA variants.

    Checkpoint
    MiniMax H3

    Details

    Downloads
    278
    Platform
    CivitAI
    Platform Status
    Available
    Created
    9/20/2026
    Updated
    9/22/2026
    Deleted
    -

    Files

    baseMinimaxh3TurboMerge_comfyFl2vaPruned_int8.safetensors

    baseMinimaxh3TurboMerge_comfyFl2vaPruned_nvfp4.safetensors

    baseMinimaxh3TurboMerge_comfyFl2vaPruned_bf16.safetensors

    baseMinimaxh3TurboMerge_comfyFl2vaPruned_mxfp8.safetensors