Use a file archiver tool to extract the installer from the Topaz-Gigapixel-AI-6.3.2.zip .

If you are looking at a file named Topaz-Gigapixel-AI-6.3.2.zip , proceed with caution.

Launch the executable setup wizard ( .exe for Windows).

However, these newer models come with trade-offs: significantly longer processing times (from seconds to minutes per image, even on high-end GPUs) and a different aesthetic approach that some users dislike compared to the more conservative upscaling of the 6.x series.