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    assDetailer, aDetailer model for butts, rears, pants, and panties - v2-segm
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    Put the .pt model file under models/adetailer

    v2-segmentation version:

    • An aDetailer model that should work for realistic, semi realistic, anime, small butts, large butts, humongous butts, butts having intercourse, butts wearing pants, thongs, panties, etc.

    This version is trained on YOLOv8-seg - the instance segmentation model. Basically it is more specific to the part it is targeting instead of a bounding box, it is also trained on 10 additional images than v1 in hopes to help with wet/shiny butts from different angles.

    Trained on 310 images, 50 epochs. It will definitely give false positives and sometimes not detect one or two but overall pretty consistent - this is technically the 9th iteration.

    The example images are merely showcasing the ability to detect the ass, it is technically prior to the aDetailer being used on it. When using it on a tall image I suggest using a separate width/height to either be square or wider

    v1-bbox release notes:

    *thanks to anyone who participated in the early access*

    Put the .pt model file under models/adetailer

    An aDetailer model that should work for realistic, semi realistic, anime, small butts, large butts, humongous butts, butts having intercourse, butts wearing pants, thongs, panties, etc.

    Trained on around 300 images, 50 epochs. It will definitely give false positives and sometimes not detect one or two but overall pretty consistent - this is technically the 7th iteration.

    The example images are merely showcasing the ability to detect the ass, it is technically prior to the aDetailer being used on it. When using it on a tall image I suggest using a separate width/height to either be square or wider

    Description

    • An aDetailer model that should work for realistic, semi realistic, anime, small butts, large butts, humongous butts, butts having intercourse, butts wearing pants, thongs, panties, etc.

    This version is trained on YOLOv8-seg - the instance segmentation model. Basically it is more specific to the part it is targeting instead of a bounding box, it is also trained on 10 additional images than v1 in hopes to help with wet/shiny butts from different angles.

    Trained on 310 images, 50 epochs. It will definitely give false positives and sometimes not detect one or two but overall pretty consistent - this is technically the 9th iteration.

    The example images are merely showcasing the ability to detect the ass, it is technically prior to the aDetailer being used on it. When using it on a tall image I suggest using a separate width/height to either be square or wider

    FAQ

    Comments (9)

    WizziFeb 2, 2025· 2 reactions
    CivitAI

    It detects boobs with 0.93-0.94 certainty which is higher than asses sometimes. idk how you would solve it tbh but def possible since there are boob adetailers that do not detect asses.Other than that works pretty well

    cranpeach
    Author
    Feb 2, 2025

    It works well with pictures where the intention is the ass, I've noticed if you're generating the front of a woman it will find everything from her face, boobs, panties, etc an ass which I mean, I dont mind those things being more detailed, plus I shouldn't have the assdetailer on in that use case anyway

    1601658Jun 15, 2025
    CivitAI

    @cranpeach How can I use it in comfyui?

    cranpeach
    Author
    Jun 15, 2025

    A bit above my paygrade I'm afraid, looks like you can use ComfyUI Impact Pack or ComfyUI-Impact-Subpack, you could also look up existing workflows for aDetailer comfyui here on-site. I think it also goes by YOLO or Ultralytics. Basically download the zip, and unzip it and put the .pt file in the models/ultralytics_segm folder

    S3XTASSYJun 28, 2025· 1 reaction
    CivitAI

    @cranpeach Hi, I'm having a problem. It doesn't detect underwear or my butt. It doesn't detect anything. I just get this error: AttributeError: The 'Segment' object does not have the 'detect' attribute.

    Killua_MoralesJul 23, 2025
    CivitAI

    Hey, I'm using ComfyUI, but this popup occurs:

    'NoneType' object has no attribute 'model_options'

    Is there a way to fix this?

    cranpeach
    Author
    Jul 23, 2025

    I don't use ComfyUI unfortunately, I'd take it up with Comfyui-Impact-Pack. A quick google of the error refers to them, as I think they are the ones who provide ultralytics support for Comfyui

    DOGEzykSep 17, 2025

    I have the same question,have you solved it ???

    BonticariusOct 28, 2025· 2 reactions
    CivitAI

    This works Phenomenal !!!!!! thank you for this. this is the only one i could find online

    Other
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    Details

    Downloads
    4,991
    Platform
    CivitAI
    Platform Status
    Available
    Created
    1/20/2025
    Updated
    5/13/2026
    Deleted
    -

    Files

    assdetailerAdetailerModelFor_v2Segm.zip

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