PixelFlow introduces a novel family of image generation models that operate directly in pixel space, eliminating the need for pre-trained VAEs and allowing for end-to-end training. By utilizing efficient cascade flow modeling, it achieves impressive image quality with a low FID score of 1.98 on the ImageNet benchmark, showcasing its potential for both class-to-image and text-to-image tasks. The model aims to inspire future advancements in visual generation technologies.