flux2_klein-SDXL_Upscale_workflow (T2i)

This workflow is for text-to-image generation with optional upscaling: it combines flux2_klein prompt tracking with illustrious-SDXL character resources, takes a text prompt, and produces a rendered image or an upscaled image.

For characters that flux2_klein has not learned, it can use illustrious-SDXL's learned resources without a LoRA.

You can also use it as a regular flux2_klein workflow.

Provide a text prompt to generate a rendered image; the workflow also supports an upscaled image.

Use ComfyUI version 0.9.1 or higher.

The named node packs are ComfyUI-Custom-Scripts (1.2.5), ComfyUI-Easy-Use (9947b8be70e17ceabafa4fa7f476b54626de4704), comfyui-mute-bypass-by-ID (2.0.0), and images-grid-comfy-plugin (2.6.0).

The named model files include flux-2-klein-4b-fp8.safetensors, qwen_3_4b.safetensors, flux2-vae.safetensors, and dmd2_sdxl_4step_lora_fp16.safetensors.

It also names lollypop.pth and Luc_meqemeqe-SR.safetensors.

Turn off Upscale-Switch to render only flux2_klein; in that mode, the workflow does not upscale anything.

For upscaling, use a ratio from 1.5 to 2.0; 1.5 is recommended.

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Verify whether your setup should use flux-2-klein-4b-fp8.safetensors or flux-2-klein-4b.safetensors.

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Before use, verify the intended files for the text encoder, VAE, upscaler, and checkpoint: qwen_3_4b.safetensors, flux2-vae.safetensors, lollypop.pth, and Luc_meqemeqe-SR.safetensors.

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