OK - I found the lightning paper and it seems the difference (to an end user) is turbo is max 512px (with no lora support) and this is 1024px (with lora support

OK - I found the lightning paper and it seems the difference (to an end user) is turbo is max 512px (with no lora support) and this is 1024px (with lora support). The example images in the paper are also subjectively better quality and composition - but appear more stylised to my eye. link: https://arxiv.org/html/2402.13929v1 https://arxiv.org/html/2402.13929v1