3:4 aspect ratio (3:4)
Portrait 4:3 suits human subjects and printed formats where a modest vertical emphasis reads as classic rather than mobile-first.
Standard pixel sizes
| Size string | Resolution | Megapixels |
|---|---|---|
| 1080×1440 | 1080 × 1440 px | 1.56 MP |
| 1536×2048 | 1536 × 2048 px | 3.15 MP |
Need a custom fit? The aspect ratio calculator fits this ratio into any megapixel budget.
What to use 3:4 for
Portrait photography, book covers, poster drafts and Pinterest pins.
Models that support 3:4
3:4 FAQ
What resolution is 3:4?
3:4 is a ratio, not a fixed resolution — any pixel dimensions where width ÷ height = 3 ÷ 4 is "3:4". Common generation sizes include 1080×1440, 1536×2048, listed in the table above.
Which AI models generate 3:4 images?
On our gateway, Z-Image Turbo support 3:4 natively for image generation. Pass the size string (e.g. "1080×1440") in your API request.
Which AI video models output 3:4?
Seedance 2.0 Fast, Seedance 2.0 Mini, HappyHorse 1.1, HappyHorse 1.0 generate 3:4 video. Video on our gateway is limited to 16:9 and 9:16.
How much does a 3:4 generation cost?
Aspect ratio doesn't affect price — image models bill per generated image (from $0.025) and video models per clip. See the pricing page for live rates.