bigASP 🐍 v2.0 A photorealistic SDXL finetuned from base SDXL on over 6 MILLION high quality photos for 40 million training samples. Every photo was captioned using JoyCaption and tagged using JoyTag. This imbues bigASP 🐍 with the ability to understand a wide range of prompts and concepts, from short and simple to long and detailed, while generating high quality photographic results.

This is now the second version of bigASP 🐍. I'm excited to see how the community uses this model and to learn its strengths and weaknesses. Please share your gens and feedback!

Features Both Natural Language and Tag based prompting: Version 2 now understands not only booru-style tags, but also natural language prompts, or any combination of the two!

SFW and NSFW: This version of bigASP 🐍 includes 2M SFW images and 4M NSFW images. Dress to impress? Or undress to impress? You decide.

Diversity: bigASP 🐍 is trained on an intentionally diverse dataset, so that it can handle generating all the colors of our beautiful species, in all shapes and sizes. Goodbye same-face!

Aspect ratio bucketing: Widescreen, square, portrait, bigASP 🐍 is ready to take it all.

High quality training data: Most of the training data consists of high quality, professional grade photos with resolutions well beyond SDXL's native resolution, all downloaded in their original quality with no additional compression. bigASP 🐍 won't miss a single pixel.

Large prompt support: Trained with support for up to 225 tokens in the prompt. It is BIG asp, after all.

(Optional) Aesthetic/quality score: Like version 1, this model understands quality scores to help improve generations, e.g. add score_7_up, to the start of your prompt to guide the quality of generations. More details below.

What's New (Version 2) Added natural language prompting, greatly expanding the ability to control the model, resolve a lot of complaints about v1, and lots, lots more concepts can now be understood by the model.

Over 3X more images. 6.7M images in version 2 versus 1.5M in version 1.

SFW support. I added 2M SFW images to the dataset, both so bigASP can be more useful as well as expanding its range of understanding. In my testing so far, bigASP is excellent at nature photography.

Longer training. Version 1 felt a bit undertrained. Version 2 was trained for 40M samples versus 30M in version 1. This seems to have tighten up the model quite a bit.

Score tags are now optional! They were randomly dropped during training, so the model will work just fine even when they aren't specified.

Updated quality model. I updated the model used to score the images, both to improve it slightly and to handle the new range of data. In my experience the range of "good" images is now much broader, starting from score_5. So you can be much more relaxed in what scores you prompt for and hopefully get even more variety in outputs than before.

More male focused data. It may come as a surprise to many, but nearly 50% of the world population is male! Kinda weird to have them so underrepresented in our models! Version 2 has added a good chunk more images focused on the male form. There's more work to be done here, but it's better than v1.

Recommended Settings Sampler: DPM++ 2M SDE or DPM++ 3M SDE

Schedule: Kerras or Exponential. ⚠️ WARNING ⚠️ Normal schedule will cause garbage outputs.

Steps: 40

CFG: 2.0 or 3.0

Perturbed Attention Guidance (available in at least ComfyUI), can help sometimes so I recommend giving it a try. It is especially helpful for faces and more complex scenes. However it can easily overcook an image, so turn down CFG when using PAG.

⚠️ WARNING ⚠️ If you're coming from Version 1, this version has much lower recommended CFG settings.

Supported resolutions (with image count for reference):

832x1216: 2229287 1216x832: 2179902 832x1152: 762149 1152x896: 430643 896x1152: 198820 1344x768: 185089 768x1344: 145989 1024x1024: 102374 1152x832: 70110 1280x768: 58728 768x1280: 42345 896x1088: 40613 1344x704: 31708 704x1344: 31163 704x1472: 27365 960x1088: 26303 1088x896: 24592 1472x704: 17991 960x1024: 17886 1088x960: 17229 1536x640: 16485 1024x960: 15745 704x1408: 14188 1408x704: 12204 1600x640: 4835 1728x576: 4718 1664x576: 2999 640x1536: 1827 640x1600: 635 576x1664: 456 576x1728: 335 Prompting bigASP 🐍, as of version 2, was trained to support both detailed natural language prompts and booru-tag prompting. That means all of these kinds of prompting styles work:

A photograph of a cute puppy running through a field of flowers with the sun shining brightly in the background. Captured with depth of field to enhance the focus on the subject. Photo of a cute puppy, running through a field of flowers, bright sun in background, depth of field photo (medium), cute puppy, running, field of flowers, bright sun, sun in background, depth_of_field If you've used bigASP v1 in the past, all of those tags should still work! But now you can add natural language to help describe what you want in more words than just tags.

If you need some ideas for how to write prompts that bigASP understands well, try running some of your favorite images through JoyCaption: https://huggingface.co/spaces/fancyfeast/joy-caption-alpha-two bigASP v2 was trained using JoyCaption (Alpha Two) to generate short, medium, long, etc descriptive captions, so any of those JoyCaption settings will work well to help you out.

I also recommend checking out the metadata for any of the images in the gallery to get some ideas. I always upload my images with the ComfyUI workflow when possible.

Finally, scoring. bigASP 🐍 v2, like v1 and inspired by the incredible work of PonyDiffusion, was trained with "score tags". This means it understands things like score_8_up, which specify the quality of the image you want generated. All images in bigASP's dataset were scored from 0 to 9, with 0 completely excluded from training, and 9 being the best of the best. So when you write something like score_7_up at the beginning of your prompt, you're telling bigASP "I want an image that's at least a quality of 7."

Unlike v1, this version of bigASP does not require specifying a score tag in your prompt. If you don't, bigASP is free to generate across its wide range of qualities, so expect both good and bad! But I highly recommend putting a score tag of some kind at the beginning of your prompt, to help guide the model. I usually just use score_7_up, which guides towards generally good quality, while still giving bigASP some freedom. If you want only the best, score_9. If you want more variety, score_5_up. Hopefully that makes sense! You can specify multiple score tags if you want, but one is usually enough. And you can put lower scores in the negative to see if that helps. Something like score_1, score_2, score_3.

NOTE: If you use a score tag, it must be at the beginning of the prompt.

NOTE: If you want booru style tags in your prompt, don't forget that some tags use parenthesis, for example photo (medium). And many UI's use parenthesis for prompt weighting! So don't forget to escape the parenthesis if you're using something like ComfyUI or Auto1111, i.e. photo (medium).

Read more on CivitAI since this is an upload from it and the text won't fit here.