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    Colossus Project Flux - v12.0 - "Hephaistos"
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    About this version:

    FP8_unet version of V12: use this clip_l for that:

    https://civitai.com/models/833086?modelVersionId=1985466

    Version V12 "Hephaistos"

    Publishing this checkpoint makes me happy and sad at the same time.. V12 will be the last checkpoint of this series.. The main reason are the upcomming EU-AI laws... Another reason is the license Flux .1 DEV has. Thank you all for the support!

    Anyways.. I will end this series on a high note...

    V12 is build on V10B "BOB" but got basically the best parts of this series blockmerged into this one checkpoint. (It was the result of a new merge method which took about 1:30h to merge and used up my entire 128GB RAM). I also enhanced the face and skin textures in comparison to V10. The eyes are much more realistic and more "alive" than before.

    Test it out yourself and give me feedback about V12. "Thanks" to my slow internet connection I will first upload the FP8_UNET. After that the FP8 "all in one" version and then the FP16_unet and FP16_BEHEMOTH. I will also try to get it converted into int4 and fp4 (wish me luck on that matter)

    As always give me some feedback about V12..


    Deep under a mountain lives a sleeping giant, capable to eighter help humanity or create destruction...

    A Colossus arise...

    After my SDXL series its time for the FLUX series of this Project... This time I trained this thing from ground up. For training I used my own images. I have created them with my schnell Flux model DemonFlux/Colossus Project schnell + my SDXL Colossus Project 12 as refiner.

    This SD Flux-Checkpoint is capable to produce nearly everything.. Colossus is very good creating extremly realistic pictures, anime and art.

    If you like it, feel free to give me some feedback. Also if you want to support me you can do this here. I have spend some good money to build a computer that is capable to actually train Flux-models.. Also training and testing takes also a lot of time and electricity..


    UP- and Downsides of this checkpoint:

    • Well this checkpoint can create extrem details..This will come with a price.. Its slow compared to the normal Flux- checkpoints. The upside of it is that you often doesn't need a additional upscale anymore. Instead of using the Flux Guidance this model uses the cfg scale. Which also mean that it will not work with standart workflows.

    • You can use negative Prompts! This helps to get stuff out of the image you don't want.

    • Sometimes can artifact appear.. You can solve this by a small and simple upscale (I am working on this). Here is an example.. this strangly happens not with every seed.. UPDATE: This is not a issue with the model itself.. more a workflow one.. I am working on fix for it. If this happens you can try setting the first upscale to 1.14 instead of 1.2.


    this is not my model, i take no credit. All credit goes to creator @ https://civitai.com/models/833086/colossus-project-flux

    Description

    checkpoint
    flux1d

    Details

    Downloads
    148
    Platform
    Tungsten
    Platform Status
    Available
    Created
    7/19/2025
    Updated
    3/28/2026
    Deleted
    -

    Files

    colossusProjectFlux_v12HephaistosFP8UNET.safetensors

    Size:
    11.08 GB
    SHA256:

    Mirrors

    Available On (50 platforms)

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