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    Update

    Version 4.0

    This release is based on V3 with some additional models and loras merged into it to improve anatomy, muscle details and some background details.

    Same settings as V3 apply for this model.

    Version 3.0

    This is a complete new merge from scratch and can produce a large variate of muscle sizes from "normal" up to gigantic hyper muscles. Breasts and Penises are also scaled in accordance to the muscle size.

    It works with male and female characters alike.

    The model works with a large variate of muscle related tags:
    only muscular female / muscular male: produces "normal" looking muscle size.

    When adding the following tags they can even bigger:

    • big muscles

    • hyper muscles

    • tags like huge pectorals, thick arms, biceps or abs can also be added to get bigger muscles or increase their details

    • and of course increasing the weight of individual tags gives you much bigger results

    The merge includes the following models:
    BlueXL_101
    RubyXL_101
    baramaxer_v10
    chenkinNoobXLCKXL_v02

    and additional styling loras

    Version 2.0

    This version is now based on my Hotaru Blend Illustrious model. It produces overall better results then V1.

    Recommended CFG: 5

    Due to this change, there are now also new quality tags:

    Positive

    masterpiece, best quality, amazing quality, very aesthetic, absurdres, cute face, detailed eyes, detailed hair, muscular female

    Negative

    lowres, bad quality, worst quality, bad anatomy, sketch, jpeg artifacts, ugly, poorly drawn, blurry, watermark, bad eyes, bright pupils, white pupils, bad hands, bad face, censored, mosaic censoring, bar censor, censor bar, text, signature

    This niche model is is little experiment of mine. I merged a few of my Muscle style loras into this checkpoint. It is based on Animagine XL 4.0 Opt.

    It creates nice looking muscular girls, but also boys.

    I tried not to overdo it in regards of the muscle size it creates at default. If you want bigger muscles, add tags like "hyper muscles" to the prompt and increase their respective tag weights.

    Please read the prompting guide on the Animagine XL 4.0 model page as this model works a bit different then illustrious-based models.

    • CFG Scale: 4-7 (5 Recommended)

    • Sampling Steps: 25-28

    • Preferred Sampler: Euler Ancestral (Euler a) with SGM Uniform

    • Highres.fix depending on use case

    • VAE is included

    Quality tags:

    Positive

    masterpiece, high score, great score, absurdres, muscular female

    Negative

    lowres, bad anatomy, bad hands, text, error, missing finger, extra digits, fewer digits, cropped, worst quality, low quality, low score, bad score, average score, signature, watermark, username, blurry

    Replace "muscular female" in the positive tags with "muscular male" if you want to create a male character.

    Permission: no commercial use, no selling, use only on Civitai (please also check the sources for their respective permissions)

    Description

    Version 2.0

    This version is now based on my Hotaru Blend Illustrious model. It produces overall better results then V1.

    Recommended CFG: 5

    Due to this change, there are now also new quality tags:

    Positive

    masterpiece, best quality, amazing quality, very aesthetic, absurdres, cute face, detailed eyes, detailed hair, muscular female

    Negative

    lowres, bad quality, worst quality, bad anatomy, sketch, jpeg artifacts, ugly, poorly drawn, blurry, watermark, bad eyes, bright pupils, white pupils, bad hands, bad face, censored, mosaic censoring, bar censor, censor bar, text, signature

    FAQ

    Comments (5)

    WhiteCaliberFoxJul 3, 2025
    CivitAI

    Would love to see it on tensor too :)

    tim007drak823Aug 13, 2025
    CivitAI

    Love the idea of model specifically designed for muscle girls, especially if specific fitness/flexing poses could be included. Ran my test prompts through them, they worked, but the model likes to push through its own style and faces are a bit too cute to my liking.

    matttung86110Dec 15, 2025
    CivitAI

    Is anyone else having trouble just getting this to run? It crashes by Comfy every time

    Zessica
    Author
    Dec 16, 2025

    Hi, I'm not a Comfy user, but I checked it with SwarmUI (based on Comfy) and it worked without any issue.

    matttung86110Dec 18, 2025

    @Zessica No worries, the hard drive it was on just completely crashed so I'm pretty sure thats the problem haha

    Checkpoint
    Illustrious

    Details

    Downloads
    416
    Platform
    CivitAI
    Platform Status
    Available
    Created
    7/3/2025
    Updated
    6/30/2026
    Deleted
    -
    Trigger Words:
    muscular female

    Files

    muscleBlend_v20Illustrious.safetensors

    Available On (1 platform)

    Same model published on other platforms. May have additional downloads or version variants.