Free tool
Generation models need an explicit pixel size. Pick the framing you want, grab a standard size (or fit the ratio into a megapixel budget), and copy it into your API request.
Largest 16:9 frame that stays under your budget (multiple of 8):
1280×7200.92 MP actual16:9 preview
Video models output 16:9, 9:16 or 1:1 — see the model catalog for per-model specs, or the cost calculator to budget your renders.