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AnimeBoysXL V3

Features

• ✔️ Good for inference: AnimeBoysXL v3.0 is a flexible model which is good at generating images of anime boys and males-only content in a wide range of styles.

• ✔️ Good for training: AnimeBoysXL v3.0 is suitable for further training, thanks to its neutral style and ability to recognize a great deal of concepts. Feel free to train your own anime boy model/LoRA from AnimeBoysXL.

Inference Guide

• Prompt: Use tag-based prompts to describe your subject.

  • Tag ordering matters. It is highly recommended to structure your prompt with the following templates:

    • 1boy, male focus, character name, series name, anything else you'd like to describe, best quality, amazing quality, best aesthetic, absurdres

    • 2boys, male focus, multiple boys, character name(s), series name, anything else you'd like to describe, best quality, amazing quality, best aesthetic, absurdres

    • For more detailed documentation, you can visit my article on Ko-fi (available to supporters only).

• Negative prompt: Choose from one of the following two presets.

  1. Heavy (recommended): lowres, bad, text, error, missing, extra, fewer, cropped, jpeg artifacts, worst quality, bad quality, watermark, bad aesthetic, unfinished, chromatic aberration, scan, scan artifacts

  2. Light: lowres, jpeg artifacts, worst quality, watermark, blurry, bad aesthetic

• VAE: Make sure you're using SDXL VAE.

• Sampling method, sampling steps and CFG scale: I find (Euler a, 28, 8.5) good. You are encouraged to experiment with other settings.

• Width and height: 832*1216 for portrait, 1024*1024 for square, and 1216*832 for landscape.

Training Details

AnimeBoysXL v3.0 is trained from Pony Diffusion V6 XL, on ~516k images.

The following tags are attached to the training data to make it easier to steer toward either more aesthetic or more flexible results.

Quality tags

• best quality: score >= 150

• amazing quality: score in the range of [75, 150)

• great quality: score in the range of [25, 75)

• normal quality: score in the range of [0, 25)

• bad quality: score in the range of (-5, 0)

• worst quality: score <= -5

Aesthetic tags

The aesthetic tags of AnimeBoysXL v3.0 reflect my aesthetic preference.

• best aesthetic

• amazing aesthetic

• great aesthetic

• normal aesthetic

• bad aesthetic

Rating tags

• sfw: general

• slightly nsfw: sensitive

• fairly nsfw: questionable

• very nsfw: explicit

Year tags

year YYYY where YYYY is in the range of [2005, 2023].

Training configurations

• Hardware: 4 * Nvidia A100 80GB GPUs

• Optimizer: AdaFactor

• Gradient accumulation steps: 8

• Batch size: 4 * 8 * 4 = 128

• Learning rates:

  • 8e-6 for U-Net

  • 5.2e-6 for text encoder 1 (CLIP ViT-L)

  • 4.8e-6 for text encoder 2 (OpenCLIP ViT-bigG)

• Learning rate schedule: constant with 250 warmup steps

• Mixed precision training type: FP16

• Epochs: 40

Changes from v2.0

• Change the base model from Stable Diffusion XL Base 1.0 to Pony Diffusion V6 XL.

• Revamp the dataset's aesthetic tags based on the developer's preference.

• Update the criterion of quality tags.

• Use FP16 mixed-precision training.

• Train for more epochs.

Special thanks

chefFromSpace for his assistance with the showcase images.

License

Since AnimeBoysXL v3.0 is a derivative model of Pony Diffusion V6 XL by PurpleSmartAI, it has a different license from the previous versions. Please read their license before using the model.