It steers the model towards the style of gpt image 2. Improving details and lighting a lot, though the image might end up looking slightly sloppy.
This is trained without a reg dataset, so the trigger word is not needed, but helps ever so slightly.
v1.1 has been trained with better (manual) LR scheduling, and a few more image. It's honestly near perfect, so I don't think there will be another version for preview3.