<h2 id="flux2_klein-sdxl_upscale_workflow">flux2_klein-SDXL_Upscale_workflow</h2>(text to image upscale)The purpose of this workflow is to mix flux2_klein excellent prompt tracking and high image quality with illustrious-SDXL's vast AGC character resources.In other words, characters that flux2_klein has not yet learned can be expressed using illustrious-SDXL's learned resources without using Lora.It combines flux2_klein and SDXL for extremely fast generation speeds.This is how I use it, but it's up to you to use it in your own way.<hr />* Note *Turn Off Upscale-Switch, only flux2_klein will be rendered.Can be used as a regular flux2_klein workflowDoesn't upscale anything<img src="https://image.civitai.com/xG1nkqKTMzGDvpLrqFT7WA/d331aa20-1e92-4728-ab96-93189e6b3d31/width=525/d331aa20-1e92-4728-ab96-93189e6b3d31.jpeg" />Upscale ratio 1.5 to 2.0 (1.5 recommended)<img src="https://image.civitai.com/xG1nkqKTMzGDvpLrqFT7WA/b8ff7e4c-581e-4d7d-929d-0476def12e7f/width=525/b8ff7e4c-581e-4d7d-929d-0476def12e7f.jpeg" /><hr /><h3 id="requirements">Requirements</h3>ComfyUI ver. 0.9.1 or higher<h2 id="flux2_klein">flux2_klein</h2>Models<a target="_blank" rel="ugc" href="https://huggingface.co/black-forest-labs/FLUX.2-klein-4b-fp8/resolve/main/flux-2-klein-4b-fp8.safetensors?download=true">flux-2-klein-4b-fp8.safetensors</a>or<a target="_blank" rel="ugc" href="https://huggingface.co/black-forest-labs/FLUX.2-klein-4B/resolve/main/flux-2-klein-4b.safetensors?download=true">flux-2-klein-4b.safetensors</a>text_encoders<a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/flux2-klein/resolve/main/split_files/text_encoders/qwen_3_4b.safetensors">https://huggingface.co/Comfy-Org/flux2-klein/resolve/main/split_files/text_encoders/qwen_3_4b.safetensors</a>VAE<a target="_blank" rel="ugc" href="https://huggingface.co/Comfy-Org/flux2-dev/resolve/main/split_files/vae/flux2-vae.safetensors">https://huggingface.co/Comfy-Org/flux2-dev/resolve/main/split_files/vae/flux2-vae.safetensors</a><hr />Illustrious Model<a target="_blank" rel="ugc" href="https://civarchive.com/search/models?baseModel=Illustrious&amp;modelType=Checkpoint&amp;sortBy=models_v9&amp;query=Illustrious">Civitai | Share your models Illustrious Checkpoint</a>also recommend<a target="_blank" rel="ugc" href="https://civarchive.com/user/ukr8b3g201/models?baseModels=Illustrious"> my merge model</a>DMD2 Speed LoRA<a target="_blank" rel="ugc" href="https://civarchive.com/api/download/models/1820705?type=Model&amp;format=SafeTensor">dmd2_sdxl_4step_lora_fp16</a> or <a target="_blank" rel="ugc" href="https://civarchive.com/api/download/models/1820946?type=Model&amp;format=SafeTensor">dmd2_sdxl_4step_lora_fp32</a>Recommend upscaler lollypop<a target="_blank" rel="ugc" href="https://huggingface.co/uwg/upscaler/blob/main/ESRGAN/lollypop.pth">https://huggingface.co/uwg/upscaler/blob/main/ESRGAN/lollypop.pth</a><hr />Use Custom Node<a target="_blank" rel="ugc" href="https://github.com/pythongosssss/ComfyUI-Custom-Scripts">https://github.com/pythongosssss/ComfyUI-Custom-Scripts</a><a target="_blank" rel="ugc" href="https://github.com/yolain/ComfyUI-Easy-Use">https://github.com/yolain/ComfyUI-Easy-Use</a><a target="_blank" rel="ugc" href="https://github.com/LEv145/images-grid-comfy-plugin">https://github.com/LEv145/images-grid-comfy-plugin</a><a target="_blank" rel="ugc" href="https://github.com/pixelpainter/comfyui-mute-bypass-by-ID">https://github.com/pixelpainter/comfyui-mute-bypass-by-ID</a><img src="https://image.civitai.com/xG1nkqKTMzGDvpLrqFT7WA/7f8cb172-1d71-4048-a0db-c8e260a8a63f/width=525/7f8cb172-1d71-4048-a0db-c8e260a8a63f.jpeg" /><img src="https://image.civitai.com/xG1nkqKTMzGDvpLrqFT7WA/96a69047-1b7b-4b5b-81f2-842ba8376c0a/width=525/96a69047-1b7b-4b5b-81f2-842ba8376c0a.jpeg" />

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