Social Media Size Guide for AI Images and Videos
The sizes AI creators need most, in one table. Export your images and videos at these sizes so platforms do not crop or compress them badly.
| Format | Size (px) | Ratio | Notes |
|---|---|---|---|
| YouTube video | 1920×1080 | 16:9 | Standard horizontal video |
| YouTube thumbnail | 1280×720 | 16:9 | Minimum width 640 px |
| YouTube Short | 1080×1920 | 9:16 | Vertical |
| Instagram feed portrait | 1080×1350 | 4:5 | Takes the most feed space |
| Instagram feed square | 1080×1080 | 1:1 | |
| Instagram feed landscape | 1080×566 | 1.91:1 | |
| Instagram Story or Reel | 1080×1920 | 9:16 | Keep key content centered |
| TikTok video | 1080×1920 | 9:16 | MP4 or MOV, H.264 |
Last checked 11 October 2026. Platforms change sizes and limits without notice, so confirm anything critical on the platform’s own help page.
Frequently asked questions
Which size works almost everywhere?
For vertical video, 1080×1920 (9:16) covers TikTok, Reels and Shorts. For horizontal video, 1920×1080 (16:9).
Do these sizes change?
Yes. Platforms update layouts and limits, so this page shows the date it was last checked. Confirm limits on the platform’s help page before an important upload.
See it in practice
Browse prompts with the exact settings and method to recreate them.