Stable Diffusion 1 vs 2 - What you need to know

Stable Diffusion 1.5 outperforms Stable Diffusion 2 in generating highly detailed and complex stylized images when using an "augmented" prompt that references specific artists or art styles. However, for more realistic and less stylized images, SD 2 is comparable to SD 1.5 and performs better at text coherence and upscaling images.