Compel prompting library

Compel is an open-source prompting enhancement library specifically designed for transformers-type text embedding systems. It was originally developed to provide a flexible and intuitive syntax for re-weighting, blending, and concatenating different parts of a complex prompt string. This allows users of AI models like Stable Diffusion to have granular control over how the text encoder interprets various adjectives or subjects within a prompt.

The project is essentially a digital asset maintained via GitHub. Unlike physical products, it does not have a single manufacturing location but is collaboratively updated by developers worldwide. It has become a standard tool in the AI generation community, particularly for those using the Hugging Face Diffusers library or the InvokeAI interface.