Seed

image

The number that initializes the random noise a diffusion model starts from. Same prompt, same settings, same seed = a pixel-identical image; change the seed and you get a fresh variation. Seeds are your reproducibility tool: when you land on a great composition, keep the seed fixed and tweak only the prompt to refine details without losing the layout. When results feel stale, randomize the seed for brand-new compositions. Example: lock seed 421337, then change 'red jacket' to 'yellow jacket' — same scene, same pose, new color.