Guide to using Seed in Stable Diffusion

What is the seed parameter in Stable Diffusion?

Seed in Stable Diffusion is a number used to initialize the image generation. You don't need to come up with the number yourself because it is randomly generated when not specified. However, controlling the seed can help you generate reproducible images, experiment with other parameters, or prompt variations.

The most important thing about seed is that generations with the same parameters, prompt, and seed will produce precisely the same images. Thanks to that, we can generate multiple similar variations of the picture. Let's look up some examples.

With this prompt for the  'portrait of a girl'  and the seed of 438233955, we can modify exactly the same character, changing only the facial expression and only the text prompt modification.

'smiling'

'laughing'

'sad'

'angry'

As we can see, modifying just one word that defines emotion changes her facial expression while maintaining the other visual features like hair, clothes, and background.

Similarly, we can change the look of the whole image, for example, generating a 'tree' during each of the four seasons:

'winter'

'autumn'

'summer'

'spring'

Or applying different artistic styles to the 'sunset' painting:

'fauvism'

'impressionism'

'oil painting'

'watercolour'

A prompt is one of many parameters you can modify to generate image variations with the same seed. See our guides for steps, guidance scale, and negative prompts for more examples.

Frequently Asked Questions

How does the seed work in Stable Diffusion?

The seed is a number that sets the starting conditions for generating an image. If you use the same seed, you’ll get the same image with the same settings every time.

Why would I want to control the seed?

Controlling the seed allows you to generate reproducible images, making it easier to experiment with different prompts or parameters while keeping certain elements consistent.

How do I change the seed parameter?

Simply open up our AI Generator and paste or write a number in the "Seed" section. You can also click a button to generate a random seed.