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    Efficiency Nodes for ComfyUI - v1.1
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    A collection of ComfyUI custom nodes to help streamline workflows and reduce total node count.


    Github Repo: https://github.com/LucianoCirino/efficiency-nodes-comfyui


    Currently Available Nodes:

    Ksampler (Efficient)

    • A modded KSampler with the ability to preview/output images and run scripts.

    Efficient Loader

    • A combination of common initialization nodes.

    XY Plotter Nodes

    • A collection of nodes that allows users to specify parameters for the KSampler (Efficient) to plot on a grid.

    Image Overlay

    • Node that allows for flexible image overlaying.

    SimpleEval Nodes

    • A collection of nodes that allows users to write simple Python expressions for a variety of data types using the "simpleeval" library.

    Description

    Efficiency Nodes v1.1 change log:

    Efficient Loader:

    • Added Baked VAE as an option on the VAE select.

    • Node will no longer reload unnecessarily on changes.

    Efficient KSampler:

    • Added a 'Preview Image' toggle on the Efficient Ksampler.

    • Fixed mistakes in console messaging text.

    • Fixed bugs and errors associated with the 'Hold' state.

    • Added messages to the console for when a sampler output is being held.

    • Refactored node code.

    Image Overlay:

    • Fixed rotation of overlay cropping the overlay image.

    • Fixed an issue with the opacity slider not applying transparency correctly.

    FAQ

    Comments (12)

    jahkeembowdy534Apr 7, 2023· 1 reaction
    CivitAI

    import matplotlib.pyplot as plt

    ModuleNotFoundError: No module named 'matplotlib'

    I guess its not a simple drop and use it.

    Not sure why im even importing that libary. Might be left over code I did not clean. I will investigate and update asap.

    luciano_a_cirino488Apr 7, 2023· 1 reaction

    Re-download and try again.

    nekotxtApr 7, 2023
    CivitAI

    Very well done, it really helps to simplify and clean the flow

    theneobrApr 7, 2023· 2 reactions
    CivitAI

    nice work man.... this works awesome good.

    AlfonsLMApr 7, 2023
    CivitAI

    I do get this error:

    Traceback (most recent call last):

    File "E:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 177, in execute

    executed += recursive_execute(self.server, prompt, self.outputs, x, extra_data)

    File "E:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 58, in recursive_execute

    input_data_all = get_input_data(inputs, class_def, outputs, prompt, extra_data)

    File "E:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 23, in get_input_data

    obj = outputs[input_unique_id][output_index]

    KeyError: 5

    AlfonsLMApr 7, 2023

    I tried to use the regular VAE node instead of the image output but got this instead:

    Traceback (most recent call last):

    File "E:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 177, in execute

    executed += recursive_execute(self.server, prompt, self.outputs, x, extra_data)

    File "E:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 56, in recursive_execute

    executed += recursive_execute(server, prompt, outputs, input_unique_id, extra_data)

    File "E:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 58, in recursive_execute

    input_data_all = get_input_data(inputs, class_def, outputs, prompt, extra_data)

    File "E:\StableDiffusion\ComfyUI_windows_portable\ComfyUI\execution.py", line 23, in get_input_data

    obj = outputs[input_unique_id][output_index]

    KeyError: 3

    Please update your ComfyUI and try gain.

    adadadaaApr 7, 2023
    CivitAI

    nice,这样就可以细中有粗了

    iszero9295Apr 8, 2023· 1 reaction
    CivitAI

    I updated to v1.1 and found this error:
    Prompt has no properly connected outputs Required input is missing. KSampler (Efficient), preview_image.

    Edit: The v1.1 version was download from github. I change to Civitai v1.1 version, then it works again.

    Try deleting old node and placing a new one. Please confirm that this works.

    PawlsFriendApr 11, 2023· 1 reaction
    CivitAI

    the "imageoverlay" node is amazing, its like my comfyui has been vaccinated.

    Other
    SD 1.5

    Details

    Downloads
    294
    Platform
    CivitAI
    Platform Status
    Deleted
    Created
    4/8/2023
    Updated
    6/18/2026
    Deleted
    8/7/2025

    Files

    efficiencyNodesFor_v11.zip