What are preprompts on BetterWaifu?

When using specific models on BetterWaifu, typing “score_9, score_8_up, score_7_up” in the prompt, and typing “score_4, score_3, score_2, score_1,” in the negative prompt can greatly enhance the quality of your images.

Why? This is simply a quirk of the process by which some of these AI models were trained. Not all AI models have this characteristic – only ones based upon Pony Diffusion V6 do.

By selecting “Use recommended quality preprompts”, these prompts are added to your prompts for Pony Diffusion V6-based models in the background, so you do not have to do it every time.