Hypernetworks
A hypernetwork is simply a small network that generates the weights of a much larger network, such as the weights of a deep ResNet, effectively parameterizing the weights of each layer of the ResNet network.
Simply, it's a sub-neural network that also helps generate things the main model can't. Usually used for learning styles and characters, it works a little better than Embedding.
To use embedding, you must put it in the stable-diffusion-webui\models\hypernetworks
If you are using colab, the path will look like this: your google drive\sd\stable-diffusion-webui\models\hypernetworks
Then select it in the settings Extra Networks > Add hypernetwork to prompt
You can add hypernetworks in the quick settings by adding sd_hypernetwork
Now the hypernetwork will be applied to the image.