https://techcrunch.com/2023/04/13/stability-ais-new-model-is-slightly-better-at-generating-hands/

Stability AI, the startup funding a range of generative AI experiments, has released a new version of Stable Diffusion, the text-to-image AI system that was among the first to rival OpenAI’s DALL-E 2.

Called Stable Diffusion XL, or SDXL, the new system — which is available in beta through DreamStudio, Stability AI’s generative art tool —  improves upon the original in key ways. Tom Mason, Stability AI’s CTO, says that it brings a “richness” to image generation that the old model (Stable Diffusion 2.1) lacked, with improvements most notable in applications like graphic design and architecture.