: Different files were triggered depending on whether you were upscaling at 1x, 2x, or 4x.
Here is a blog post drafted around the significance of this update. The Day Upscaling Changed: Revisiting Gigapixel AI 5.5
In June 2021, a specific set of model files began appearing on workstations around the world. For many, they were just data—part of an installer like 2021-06-21_15.12-gigapixel-5.5-models-win.part2 . But for photographers and digital artists, these files represented a massive leap in how we enhance low-resolution images. A New Engine Under the Hood