UltraReal Fine-Tune

The UltraReal Fine-Tune model, released on December 18, 2024, builds upon the foundation of the Flux.1 D model. This checkpoint-trained system delivers enhanced capabilities across multiple domains while maintaining compatibility with various hardware configurations through multiple checkpoint variants.

Technical Specifications and Training

Version 2.0 of UltraReal Fine-Tune was trained on an expanded dataset of 1800 images, carefully curated to ensure balanced representation across various styles, lighting conditions, and compositional elements. This comprehensive training approach has resulted in significant improvements in several key areas, particularly in anatomical accuracy and texture rendering.

The model is available in multiple checkpoint variations to accommodate different hardware capabilities and performance requirements:

• BF16
• FP8
• Quant 8 (Q8)
• Quant 4 (Q4)
• NF4

Early testing indicates that the Quant 8 (Q8) variant may offer superior quality compared to the FP8 version, making it a promising option for users seeking optimal results without excessive resource consumption.

Features and Capabilities

The model excels in several areas while maintaining active development in others:

Strengths:

• Enhanced anatomical accuracy, particularly in hands, feet, and poses
• Improved texture rendering and overall image quality
• Better balanced lighting and compositional elements
• Enhanced text rendering capabilities (though still being refined)

Areas Under Development:

• Text rendering continues to see improvements
• Edge cases involving dynamic poses and lighting
• Occasional issues with low-resolution outputs and hand/foot rendering

When compared to the original UltraReal LoRA and default Flux model, UltraReal Fine-Tune demonstrates superior realism, particularly in details, lighting, and shadow rendering across various styles from casual to cinematic.

Usage Guidelines and Legal Considerations

For optimal results, users should employ:

• DPM++ 2M samplers
• 30-50 steps
• Beta Scheduler
• Complex, comma-separated prompts

The model operates under the FLUX.1 [dev] Non-Commercial License from Black Forest Labs, Inc. Users assume all risks associated with its use, and the license explicitly states that Black Forest Labs, Inc. bears no liability for any claims, damages, or other liabilities arising from the model's use.

References

1. Civitai's Guide to Resource Types (Models) - Comprehensive guide explaining different model types
2. How to use models - Detailed instructions for utilizing fine-tuned models
3. FLUX.1 [dev] Non-Commercial License - Official license documentation
4. Base Model Information - Related video about the base model