UltraPixel is an advanced ultra-high-definition image synthesis technology aimed at pushing image resolution to new heights. Developed jointly by institutions such as the Hong Kong University of Science and Technology (Guangzhou), Huawei Noah's Ark Laboratory, and the Max Planck Institute for Informatics, it excels in image synthesis, text-to-image conversion, and personalized customization. It can generate images with a resolution of up to 4096x4096, meeting the needs of professional image processing and visual art.