FLUX.2-klein-4B_clear

flux-2-klein-4b_clear

• Guide (External site): English | Japanese
• Civitai

<div style="display: flex; justify-content: center; align-items: center; gap: 2em;"> <div> <img src="./images/flux-2-klein-4b_clear_cover_image_anime.png" alt="tumbnail_image_anime" width="400" height="400"> </div> <div> <img src="./images/flux-2-klein-4b_clear_cover_image_photoreal.png" alt="tumbnail_image_photoreal" width="400" height="400"> </div> </div>

A fine-tuned version of flux-2-klein-4b model, designed to produce clearer and more vibrant outputs.

Compare to flux-2-klein-4b

<div style="display: flex; justify-content: center; align-items: center; gap: 2em;"> <div> <img src="./images/flux-2-klein-4b_clear_compare_anime.png" alt="flux-2-klein-4b_clear_compare_anime" width="400" height="400"> </div> <div> <img src="./images/flux-2-klein-4b_compare_anime.png" alt="flux-2-klein-4b_compare_anime" width="400" height="400"> </div> </div> <p style="text-align:center;">flux-2-klein-4b_clear | flux-2-klein-4b (Original)</p> <div style="display: flex; justify-content: center; align-items: center; gap: 2em;"> <div> <img src="./images/flux-2-klein-4b_clear_compare_photoreal.png" alt="flux-2-klein-4b_clear_compare_photoreal" width="400" height="400"> </div> <div> <img src="./images/flux-2-klein-4b_compare_photoreal.png" alt="flux-2-klein-4b_compare_photoreal" width="400" height="400"> </div> </div> <div style="text-align: center; margin-left: auto; margin-right: auto; width: 800px; max-width: 90%;"> <img src="./images/flux-2-klein-4b_clear_compare_photoreal_close_up.png" alt="compare_photoreal_close_up" width="800" height="400"> </div>

Compared to the original, flux-2-klein-4b_clear generates illustrations with higher contrast and richer colors.

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INT8_ConvRot_HQ (light weight)

INT8_ConvRot_HQ is a lightweight version.

Image quality is slightly lower than the original BF16, but it is particularly well-suited for fast generation in low-VRAM environments (4-6 GB).

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Workflow

Text to Image

<div style="text-align: center; margin-left: auto; margin-right: auto; width: 800px; max-width: 90%;"> <img src="./images/Flux2_Klein_t2i_20260127.png" alt="text_to_image_workflow" width="800"> </div> <p style="text-align:center;">This PNG image contains a ComfyUI workflow.</p>

Image Edit

<div style="text-align: center; margin-left: auto; margin-right: auto; width: 800px; max-width: 90%;"> <img src="./images/Flux2_Klein_i2i_20260127.png" alt="image_to_image_workflow" width="800"> </div>

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Recommended Settings

General

• Sampler:
  • euler (Speed)
  • heunpp2 (Quality)
• Steps: 12 (4-15)

Upscaler

your choice, examples:

• 4x-SwinIR-L_GAN
• 4x_NMKD-Superscale-SP_178000_G

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Tips (External site)

• Z-Image-Turbo_clear: English | Japanese
• Qwen-Image-Edit-2511_clear: English | Japanese

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License

• Apache-2.0