Nodes/AnimoFlow/Kimodo Generate (AnimoFlow)
ComfyUI Node

Kimodo Generate (AnimoFlow)

NVIDIA's text-to-motion model, GPU-only and worth it

By AnimoFlow·Created 2 months ago·Updated about a month ago· 1
Kimodo Generate (AnimoFlow)
    • bvh_b64
    • soma_raw_b64
    • npz_b64
    • native_fps
    prompta person walks forward
    duration5.0
    model
    output
    steps100
    cfg_text2.0
    cfg_constraint2.0
    seed-1
    root2d_json

    AnimoFlow_Kimodo is the pack's flagship and its exception. Every other generator in AnimoFlow runs on CPU; Kimodo - NVIDIA's 2026 controllable human-motion model - is GPU-only by design. When the pack was announced, the community reaction to Kimodo was a mix of excitement and "17GB of VRAM for the text encoder, really?" - and this node is how that model ends up in a ComfyUI graph instead of on a research page. If you have a modern NVIDIA card, it's the highest-quality output in the pack. If you don't, this node just errors, and that's correct behavior - it's not even started without --gpu.

    It's also the most controllable generator here. Beyond the text prompt, Kimodo accepts a root2d_json - a sparse or dense root trajectory constraint - so you get the same "draw the path" power as priorMDM, but baked into the model's native output rather than a post-hoc prior. That's where the draw-pad nodes in this pack (AnimoFlow_DrawTrajectory for a freehand curve, AnimoFlow_DrawWaypoints for numbered pins) come in: their root2d_json output wires straight into this node's optional input.

    Inputs that matter

    • prompt - multiline English, default "a person walks forward".
    • duration - 1–30 seconds (default 5). Kimodo is the one generator that thinks in seconds rather than frames, because it generates at 30 fps natively, not 20 like the HumanML3D-lineage models. 5 seconds = 150 frames.
    • model - two choices: Kimodo-SOMA-RP-v1 and Kimodo-SOMA-SEED-v1. SOMA is NVIDIA's skeleton format; RP and SEED are two checkpoints. Start with RP, which is the reference-quality one.
    • output - BVH (22-joint rig), BVH (native SOMA), or SOMA raw. This is genuinely useful: you can skip the whole NPZ→IK stage by asking for the rigged BVH directly. The 22-joint rig drops you into AnimoFlow_Rig with one less node in the chain.
    • steps - 10–200, default 100. Standard diffusion sampling steps.
    • cfg_text and cfg_constraint - both default 2. Two separate guidance scales: one for the prompt, one for how hard to obey your trajectory constraint. Bump cfg_constraint when the character isn't following your drawn path tightly enough.
    • seed - default -1 means random each run; set a positive number for reproducibility.

    Outputs

    bvh_b64 (an ANIMOFLOW_BVH), soma_raw_b64 (ANIMOFLOW_SOMA), npz_b64 (ANIMOFLOW_NPZ), and native_fps (30). Wire bvh_b64 into AnimoFlow_Rig and you're on the standard export path; the text_kimodo_video workflow drives a full pose-conditioned Wan 2.2 Fun-Control video generation off this node.

    Install and the GPU gotchas

    Everything in this pack needs the Docker backend, but Kimodo has three extra requirements on top:

    cd comfyui-animoflow
    ./install.sh doctor
    ./install.sh up --gpu    # the --gpu flag is what starts the kimodo container
    

    First, it's behind a GPU compose profile - ./install.sh up alone won't start it. Second, the weights are pulled from Hugging Face on first container start, which needs an HF_TOKEN in .env. Third, the NVIDIA container runtime must actually work - nvidia-smi inside docker run --gpus all has to succeed. First start takes around five minutes. The "container unreachable at http://localhost:8005" error on a CPU machine isn't a mystery: Kimodo simply isn't started there. The README's fallback advice - use MDM, priorMDM, or MoMask on CPU - is the correct answer, not a workaround.

    CategoryAnimoFlow/Motion

    Inputs (9)

    NameTypeDefaultDescription
    promptSTRINGa person walks forward
    durationFLOAT5.01–30
    modelCOMBO2 options: Kimodo-SOMA-RP-v1, Kimodo-SOMA-SEED-v1
    outputCOMBO3 options: BVH (22-joint rig), BVH (native SOMA), SOMA raw
    stepsINT10010–200
    cfg_textFLOAT2.00.5–10
    cfg_constraintFLOAT2.00.5–10
    seedINT-1-1–2147483647
    root2d_jsonoptSTRING

    Outputs (4)

    NameTypeDescription
    bvh_b64ANIMOFLOW_BVH
    soma_raw_b64ANIMOFLOW_SOMA
    npz_b64ANIMOFLOW_NPZ
    native_fpsINT