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X (Twitter) Ads ad specs
Promoted post
Sponsored post in the timeline
- Dimensions
- 1200 × 675 px (image posts)
- Aspect ratio
- 16:9 or 1:1
- Max file size
- 5 MB image (15 MB GIF)
- File types
- JPG, PNG, GIF
- Copy limits
- Post text 280 chars
Video ad
Promoted video in the timeline
- Dimensions
- 1280 × 720 px
- Aspect ratio
- 16:9 or 1:1
- Max file size
- 1 GB
- File types
- MP4, MOV · ≤ 2:20 (≤ 15 s recommended)
- Copy limits
- Post text 280 chars
Carousel
2–6 swipeable cards
- Dimensions
- 800 × 418 px per card (2–6 cards)
- Aspect ratio
- 1.91:1 or 1:1
- Max file size
- As image/video specs
- File types
- JPG, PNG, MP4
- Copy limits
- Post text 280 chars
Specs current as of 2026 and subject to change by the platforms — confirm against official docs before final creative export.