README.md

metadata

license: apache-2.0
language:
  - en
pipeline_tag: text-to-image
base_model: Tongyi-MAI/Z-Image
tags:
  - gguf
  - safetensors
  - text-to-image
  - rundiffusion
  - z-image

Juggernaut Z
_{^{A polished cinematic fine-tune of Z-Image Base from RunDiffusion}}

Juggernaut Z is a fine-tuned image model built on Z-Image Base, created through the work of Team Juggernaut with fine-tuning by KandooAI. On RunDiffusion, it is positioned as a stronger choice for creators who want more polished image output, better lighting quality, stronger camera focus, and more detailed skin textures.

This repository is intended to host the RunDiffusion release artifacts for Juggernaut Z, including full-precision weights and GGUF quantizations.

Overview

Juggernaut Z is tuned for a more presentation-ready look out of the box. Relative to Z-Image Base, the emphasis is on:

• Stronger lighting and clearer atmosphere
• More refined focus and camera feel
• More polished portrait rendering
• Improved skin texture detail
• Better out-of-the-box presentation for editorial, concept, and cinematic work

Website Comparisons

The comparison sets below are taken from the RunDiffusion Juggernaut Z announcement page.

Comparison label: Left: Juggernaut Z · Right: Z Image Base

Better Lighting

More dramatic, cinematic lighting quality out of the box.

Improved Textures

Juggernaut Z produces cleaner and more natural-looking skin textures, especially in close-up portraits.

Anatomy

We have worked to improve overall image integrity, resulting in cleaner anatomy and more consistent structural detail across a wide variety of subjects.

Composition

Subject and object placement within scenes improved in version one, with continued improvements planned for version two.

Diversity

The model is tuned toward a more balanced result across ethnic backgrounds, with better representation out of the box.

Architecture

Architectural subjects benefit from cleaner structural lines and more coherent material rendering.

Recommended Settings

Based on the RunDiffusion launch guidance:

• Recommended default: CFG 6, 35 steps
• Good CFG range: 6 to 9
• Good steps range: 25 to 45

Good Fit For

• Portraits with cleaner facial detail and stronger focus
• Cinematic scenes with stronger lighting and clearer atmosphere
• Concept development and visual exploration
• Editorial and fashion work that benefits from a polished finish

Files In This Repo

Current release artifacts:

• Juggernaut_Z_V1_by_RunDiffusion.safetensors
• Juggernaut_Z_V1_FP8_e4m3fn.safetensors
• Juggernaut_Z_V1_by_RunDiffusion_q4_k_s-001.gguf
• Juggernaut_Z_V1_by_RunDiffusion_q4_k_m-002.gguf
• Juggernaut_Z_V1_by_RunDiffusion_q5_k_s-005.gguf
• Juggernaut_Z_V1_by_RunDiffusion_q5_k_m-003.gguf
• Juggernaut_Z_V1_by_RunDiffusion_q6_k-004.gguf
• Juggernaut_Z_V1_by_RunDiffusion_q8_0.gguf

Notes

• The base model is Tongyi-MAI/Z-Image.
• This card uses image assets from the RunDiffusion Juggernaut Z announcement page.
• If you are using the GGUF files, use a GGUF-compatible runtime or workflow.
• If you are using the safetensors releases, load them with the workflow that matches your local inference stack.

Links

• Announcement: RunDiffusion Juggernaut Z
• Prompt guide: Juggernaut Z Prompt Guide
• Base model: Tongyi-MAI/Z-Image

Attribution

Juggernaut Z is based on Z-Image Base. Credit for the upstream base model belongs to the Z-Image team. Credit for this fine-tuned release is attributed to Team Juggernaut, with fine-tuning by KandooAI, as described on the RunDiffusion announcement page.