Guide to Negative Prompts in Stable Diffusion

What is a negative prompt in Stable Diffusion?

A negative prompt is a parameter that tells Stable Diffusion what you don't want to see in the generated images. When specified, it guides the generation process not to include things in the image according to a given text.

A negative prompt may prevent generating specific things and styles, fix some image abnormalities, and greatly improve the quality. Let's look at examples comparing the same images with and without negative prompts:

Improving the overall quality and body proportions while creating  'portraits':

Without negative prompt

Negative prompt: 'Disfigured, cartoon, blurry, nude'

Removing visual features e.g., 'moss' from the 'forest':

Without negative prompt

Negative prompt: 'moss'

Changing the image lighting and making it look sharper by removing fog:

Without negative prompt

Negative prompt: 'darkness, fog'

We hope our guide helped you understand the negative prompts parameter in Stable Diffusion, and you'll use what you've learned to generate even better art.

Frequently Asked Questions

When would I need to use a negative prompt?

You’d use it when you want to remove unwanted details, like specific objects or effects, from your image, when using our AI Generator's SD mode.

How do I use negative prompts in Stable Diffusion?

Head to our AI Generator, switch to SD mode, and fill in the "Negative prompt" section, separating every element you don't want in your image by a comma (e.g., "sketch, drawing").