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YouTube Shorts vs TikTok In-Feed
Both 9:16, both right-rail engagement, both bottom CTA. TikTok clips caption at 100 chars; Shorts clips description at 60. Plan the tighter clamp.
YouTube Shorts and TikTok In-Feed are the two largest short-form vertical video ad surfaces, and they are visually nearly identical. Both run a full-bleed 9:16 video with a right-rail engagement column, a username block bottom-left, and a sponsored CTA strip across the bottom. The character clamps diverge at exactly the visible caption window.
TikTok In-Feed clips caption at roughly 100 visible characters. YouTube Shorts clips description at roughly 60 visible characters — a 40% tighter window. The difference comes from YouTube's right-rail having six icons (like, dislike, comment, share, remix, subscribe) versus TikTok's five (like, comment, share, bookmark, audio). YouTube also embeds a "Subscribe" pill in the channel block that TikTok's @username row doesn't have.
For cross-platform creative, plan to YouTube's tighter ceiling. A 60-character caption fits both; a 100-character TikTok-optimized caption will get clipped on Shorts.
@brand · Sponsored · Sponsored
TikTok In-Feed: 100 visible. YouTube Shorts: 60 visible. Pla…
Side-by-side specs
| Field | Hard max | Visible before truncate | Warn at |
|---|---|---|---|
| Description | 120 | 60 | 50 |
| Channel / display name | 50 | 30 | 25 |
Source: https://support.google.com/google-ads/answer/12362050 · Last verified 2026-04-15.
| Field | Hard max | Visible before truncate | Warn at |
|---|---|---|---|
| Caption | 2200 | 100 | 80 |
| Display name | 40 | 40 | 30 |
Source: https://ads.tiktok.com/help/article/in-feed-ads-overview · Last verified 2026-04-15.
FAQ
- Are the engagement metrics comparable?
- Like-rate is similar on both platforms. TikTok pulls higher save and share rates; YouTube Shorts pulls higher subscribe-from-ad rates.
- Does sound-on autoplay work on both?
- Yes. Both default to sound-on autoplay in vertical-feed entry. Plan for sound on but caption for accessibility.
- Which platform has more inventory?
- TikTok In-Feed has more global inventory; YouTube Shorts has more US-tier-1 inventory. Mix accordingly.