Wan 2.5 supports custom aspect ratios between 1:4 and 4:1, which covers most standard formats but has limitations for extremely wide panoramic outputs. A 4:1 ratio produces wide landscape images suitable for banner graphics, website headers, and wide-format prints, but won't accommodate ultra-panoramic formats like 6:1 or 8:1 that some specialized applications require. For projects needing extreme aspect ratios beyond the 4:1 limit, consider generating at the maximum supported width and extending the image in post-production using outpainting tools or compositing multiple generations. Alternatively, compare with
Nano Banana Pro or
BitDance which may offer different aspect ratio capabilities. The 1:4 through 4:1 range covers square formats, standard portrait and landscape orientations, social media dimensions, and most print formats, making it sufficient for the majority of creative projects without requiring specialized panoramic generation.