Z-Image-Turbo_clear

• Guide (External site): English | Japanese

• Hugging Face

• VAE: Z-Image_clear_vae

Compare to Z-Image-Turbo (Original)

Z-Image-Turbo_clear | Z-Image-Turbo

The Z-Image-Turbo_clear model is a fine-tuned version of Z-Image-Turbo that improves details compared to the original.

For better results, please use it with the dedicated VAE, Z-Image_clear_vae.

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Model Format and Quality

Generally, model size and image quality are proportional.

• FP32 > FP16 ≒ BF16 > MXFP8 > FP8_svd_scaled > FP8

Generation time varies greatly depending on whether the model can be loaded into VRAM, and the supported formats are determined by the GPU generation.

MXFP8 is the latest standard designed for the RTX 5000 series. On unsupported GPUs, however, fallback mechanisms will actually slow down processing, so their use is not highly recommended.

For a comparison of image quality and generation time by format, please see this page.

If you are unsure which precision to use, it is safest to choose the BF16 format.

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Recomended Settings

• Sampler:

  • euler

  • res_multistep

• Scheduler: beta

• Steps: 9

• ModelSamplingAuraFlow: shift 7.5 (3-9)

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Upscaler

your choice, examples:

• 4x-SwinIR-L_GAN

• 4x_NMKD-Superscale-SP_178000_G

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Tips (External Sites)

• ComfyUI VRAM management: English | Japanese

• FP / BF Format Image Quality and Generation Time: English | Japanese

• Steps and Scheduler: English | Japanese

• Color Correct custom nodes in ComfyUI: English | Japanese

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License

• Apache-2.0