> For the complete documentation index, see [llms.txt](https://developer.xyxyx.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.xyxyx.pro/getting-started/tokenization-models.md).

# Tokenization Models

The Xyxyx API allows developers to build upon Xyxyx's two foundational tokenization models ([A4](https://docs.xyxyx.pro/products-and-services/tokenization-models/A4/specifications) and [1x1](https://docs.xyxyx.pro/products-and-services/tokenization-models/1x1/specifications)). Each model is designed for specific use cases, offering different levels of customization and text content capacity.

For further understanding about Tokenization Models, please refer [here](https://docs.xyxyx.pro/products-and-services/tokenization-models).