Realism Engine SDXL

Realism Engine SDXL is a Stable Diffusion XL checkpoint model focused on generating highly photorealistic images. Through multiple iterations, it has established itself as a powerful tool for creating lifelike portraits and scenes with exceptional detail and coherence.

Model Evolution and Features

The model family has undergone several significant iterations, with the latest Version 3.0 released on January 12, 2024. This version brings notable improvements in skin realism, eye detail, and male anatomy rendering.

Version 2.0 marked a significant advancement with improved prompt responsiveness and overall coherence, particularly in facial expressions, faces, poses, and hands. It also addressed previous limitations in nighttime scenes and CFG scale adjustments. This version includes a built-in VAE to simplify setup for new users.

The model's evolution from v0.3 through v3.0 shows a consistent focus on enhancing realism and addressing specific limitations. Each version has built upon its predecessor's foundation, with progressive improvements in key areas such as skin texture, facial features, and overall image coherence.

Usage and Optimal Settings

For optimal results in Auto1111, the following settings are recommended:

• Sampler: DPM++ 2S a
• CFG Scale: 5-9
• Hires Sampler: DPM++ SDE Karras
• Hires Upscaler: ESRGAN_4x
• Refiner Switch: 0.9 (first pass only)

The model excels at generating photorealistic portraits and scenes, as demonstrated by its ability to render diverse subjects with remarkable detail:

Licensing and Usage Guidelines

The model is released under the CreativeML Open RAIL++-M License with an additional specific addendum. While Version 2.0 can generate NSFW content with explicit prompting, Version 3.0 is explicitly designed as a non-NSFW model, with the creator recommending SDXXXL for NSFW content generation.

References

1. Civitai's Guide to Resource Types - Comprehensive guide to understanding different model types
2. How to use models - Detailed instructions for using fine-tuned models
3. SDXL 1.0 Base Model Video - Video explanation of the base model
4. CreativeML Open RAIL++-M License - Primary license documentation
5. Realism Engine SDXL License Addendum - Additional licensing terms
6. Auto1111 Settings Guide - Visual guide for optimal settings configuration