The underlying dataset for Stable Diffusion was the 2b English language label subset of Laion 5b https://laion.ai/blog/laion-5b/, ==a general crawl of the internet created by the German charity LAION==. The CompVis team at the University of Heidelberg trained the model in compliance with German law. The underlying dataset was not filtered to exclude or include any specific group.
LATER Fix this to have an entry for Stability AI separate from Stable Diffusion #Processing