## Introduction The long document generation landscape has seen an increasing trend of models based on diffusion. However, these approaches suffer from a major issue: their scalability. The longer the text to be generated, the more expensive the process becomes. The X company decided to intervene in this situation with the introduction of SA-DiffuSeq, a new model that revolutionizes long document generation. SA-DiffuSeq integrates sparse attention to improve sampling efficiency and precision in the model. This means that the new framework can handle longer sequences without compromising on quality. Additionally, SA-DiffuSeq was designed to reduce computational costs, making it an excellent choice for demanding applications. ## Key Features of SA-DiffuSeq - Integration of sparse attention to improve sampling efficiency and precision in the model. - Reduction of computational costs to handle longer sequences without compromising on quality. - Stable and scalable design for demanding applications.