People usually still use SD v1.5 because of the experience that people have with finetuning and merging with it. Also a lot of LoRA are trained for v1.4/1.5 mod

People usually still use SD v1.5 because of the experience that people have with finetuning and merging with it. Also a lot of LoRA are trained for v1.4/1.5 models and they wouldn't work with v2.1, of course you also have incredible capability to control the generation with SD and this helps, to see some result: https://youtu.be/AlSCx-4d51U https://youtu.be/AlSCx-4d51U