Juggernaut XL

Juggernaut XL (version XI) is a text-to-image diffusion model built upon the Stable Diffusion XL base model from Stability AI. The model utilizes the StableDiffusionXLPipeline within the Diffusers library and has been extensively trained on a carefully curated dataset of 15,000 images. A defining characteristic of this model is its training methodology - the entire dataset was recaptioned using GPT-4 Vision Captioning tool by LEOSAM, resulting in cleaner, higher-quality data with improved image classifications.

The model has garnered significant attention in the AI community, with over 600,000 downloads across Huggingface and Civitai platforms, making it one of the most downloaded SDXL AI models. The training process involved over 110 hours using a powerful GPU cluster, with more than 3,500 images manually verified after GPT Vision captioning.

Features and Capabilities

Juggernaut XI demonstrates significant improvements over its predecessors, particularly in areas that have traditionally been challenging for AI image generation. The model excels at:

• Enhanced prompt adherence and aesthetic quality
• Improved rendering of hands, eyes, and faces
• Better shot type classification (full body, midshots, portraits)
• Text generation within images (optimized for shorter phrases)
• NSFW components revised using WD Tagger

The model supports two distinct prompting styles: natural language and tagging. Natural language prompts should be kept brief due to a 75-token limit, while tagging prompting offers more detailed control over the generated images.

Optimal Parameters and Usage

For optimal results, users should consider the following parameters:

• Resolution: 832x1216 (though other resolutions are supported)
• Sampler: DPM++ 2M SDE
• Steps: 30-40
• CFG Scale: 3-6 (lower values yield more realistic results)
• Initial approach: No negative prompt (add as needed)

For high-resolution upscaling, it's recommended to use 4xNMKD-Siax_200k with 15 steps and 0.3 denoise + 1.5 upscale. The creator notes that a Flux > Juggernaut XI pipeline may yield the best results.

Model Family and Variants

The Juggernaut family includes multiple versions, each with its own characteristics:

• Juggernaut X (predecessor to XI)
• Juggernaut 9 and earlier versions (V8, V7, V6, V5, V4.5, V4, V3, V2, V1)
• Juggernaut X Hyper version
• Lightning version of Juggernaut XL

Version XI specifically addresses stability issues present in version X while maintaining the visual quality achieved in version 9. The model is licensed under CreativeML Open RAIL++-M with an addendum, and for commercial use, specific licensing arrangements are required.

Reference Links

• Civitai Model Page - Primary distribution and community discussion
• HuggingFace Repository - Model weights and technical documentation
• Prompting Guide - Detailed guide for optimal model usage
• CreativeML License - Model license details
• RunDiffusion Website - Official model information and updates