If working with imported images, start with the quality and type of your source material. Clean, high-resolution images or photos usually suit Fidelity. Rough sketches, paintings, or lower-quality images usually suit Forge.
The same principle applies when generating from a text prompt — your chosen sample image becomes the source, so judge it the same way you’d judge an uploaded photo: a clean, detailed sample suits Fidelity, while a simpler or more stylised one suits Forge. It’s also an artistic choice — how closely you want the final relief to follow the source versus how much creative interpretation you’d like applied.
You’re not locked into your choice. If you’d prefer the other model’s result, you can generate again with it — that’s a new generation, charged at the standard credit cost, the same as any other.
