X (Twitter) Video Ad ads are horizontal 16:9 video clips, measured at 1920×1080 px, up to 1024 MB per file, up to 140 seconds long, delivered as MP4 or MOV. They run in the Timeline placement on X (Twitter). Encode with H.264 video with AAC LC audio at 30 fps for clean playback across devices.
| Dimensions | 1920 × 1080 px |
|---|---|
| Aspect ratios | 16:9, 1:1, 9:16 |
| Orientation | landscape |
| Max file size | 1024 MB |
| File types | MP4, MOV |
| Max duration | 140 sec |
|---|---|
| Video codec | H.264 |
| Frame rate | 30 fps |
| Video bitrate | 6000 kbps |
| Audio codec | AAC LC |
| Audio channels | stereo (2) |
| Sample rate | 48000 Hz |
| Primary text | 280 chars |
|---|
Up to 2:20 standard; verified advertisers up to 10 min.
Official source: https://business.x.com/en/help/campaign-setup/advertiser-card-specifications