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    Flux.2 Klein 9B Workflows (includes Edit workflow + inpaint) + SageAttention + SeedVR2 Upscale - v1.1 (fixed+kv+latentups)
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    My TG Channel - https://t.me/StefanFalkokAI

    My TG Chat - https://t.me/+y4R5JybDZcFjMjFi

    Hi! I introduce my working workflows with Flux.2 Klein 9B for ComfyUI.

    I have included workflows with Flux.2 Klein 9B models

    You need to have Flux.2 Klein 9B KV Model (https://huggingface.co/black-forest-labs/FLUX.2-klein-9b-kv/blob/main/flux-2-klein-9b-kv.safetensors), clip (https://huggingface.co/Comfy-Org/vae-text-encorder-for-flux-klein-9b/tree/main/split_files/text_encoders) and vae (https://huggingface.co/Comfy-Org/flux2-dev/tree/main/split_files/vae)

    if you need Base version - https://huggingface.co/black-forest-labs/FLUX.2-klein-base-9B/blob/main/flux-2-klein-base-9b.safetensors

    also recommend download Flux 2 Klein 9B by wikeeyang, it gives a better result - https://civarchive.com/models/2339723/flux2-klein-9b-true

    https://huggingface.co/datasets/StefanFalkok/ComfyUI_portable_torch_2.13.0_cu130_cp313_sageattention_triton - my new ComfyUI build with torch 2.13.0cu130 + sageattention + my workflows, also u need download and install CUDA 13.0 (https://developer.nvidia.com/cuda-13-0-0-download-archive) and VS Code (https://visualstudio.microsoft.com/downloads/)

    Leave comments if you have trouble or you found the problem with workflows

    Description

    fixed edit workflow

    added source for Flux 2 Klein KV Model

    added latent upscale method to get more cool image

    FAQ

    Comments (6)

    singularity42Mar 18, 2026
    CivitAI

    Working, but the results look like insane amounts of plastic compared to the non kv. Maybe you set a wrong sampler/scheduler?

    Stefan_Falkok
    Author
    Mar 18, 2026

    1. I use recommend 1mp for getting more stable results

    2. I recomend use Flux 2 Klein True instead kv - yoo'll get even better results

    it's not sampler/scheduler problem. Flux 2 Klein gives more plastic results when you set resolution from 2mp to 4mp. So set 1mp and adjust upscale latent by parameters

    singularity42Mar 18, 2026· 2 reactions

    @Stefan_Falkok Nah, what Im saying is I dont have the issue with plastic-y looking faces using a workflow that does not use the new kv. I'm almost certain there are better options and settings for the samples and start/end steps. I'll keep messing around and see what I can come up with.

    singularity42Mar 19, 2026· 1 reaction

    Removed uni-pc - converted to a two step ksampler with returned noise from the first. Looking much better. Thanks for getting me started with this.

    freakingpogi3431Apr 12, 2026

    @singularity42 Share workflow? Or at least a screenshot of it?

    singularity42Apr 16, 2026

    @freakingpogi3431 I go through work flows like water. Ive already moved way beyond that. Sorry.

    Workflows
    Flux.2 Klein 9B

    Details

    Downloads
    433
    Platform
    CivitAI
    Platform Status
    Deleted
    Created
    3/15/2026
    Updated
    7/28/2026
    Deleted
    4/20/2026

    Files

    flux2Klein9BKVWorkflows_v11FixedKvLatentups.zip

    flux2Klein9BKVWorkflowsIncludes_v11FixedKvLatentups.zip