This will make reasonable quality 4bit ANSI Art-style graphics. Not really quite 4-bit, but you can replace the colours in any graphics editor if you like. Upscaler is needed for the best effects (4x-Ultrasharp should do). Use simple, minimalistic prompts. Although you can experiment and see where it leads you.

1.5 model available here

While the XL model has better fidelity when it comes to character/block dimensions and 4-bit color palette, but it seems a bit dull compared to the 1.5, however it will depend also on the base model used.

Use weight of ~0.8, clip skip 1, denoising 0.6