A: Hello Bevegan,

1. A credit is a single image generation from prompt at the default settings.

We updated our credit system and most image generation and sizes consume only 1 credit.

Generating images consumes credits based on the image resolution and steps used. If you use more steps or increase your image size, more credits will be used.

You can have a full overview of credit consumption here:
https://artsmart.super.site/appsumo-faqs#897928a4c494438fac711dfb177a4d5c

2. We are using a text to image model called stable diffusion for the majority of operations.

Currently, we are using stable diffusion version 2.1 with 512 x 512 native output.

More information here - https://docs.artsmart.ai/about-the-tech

3. As of now, the maximum size is 1024x1024 pix, but you can upscale it. Max upscale is 8k resolution.

How to upscale you can find here - https://docs.artsmart.ai/upscale-enhance-photos

Also, to see advanced resolutions, you can upvote for a similar request on our roadmap https://artsmart.ai/roadmap/allow-higher-resolutions

Please, feel free to get in touch with us again if we can be of further help!