[KongchangAI]
Unverified50% confidenceFactExact time

Different platforms have differentiated requirements for material dimensions: Instagram prefers 1:1 or 4:5, TikTok and Reels require 9:16 full-screen vertical, YouTube pre-roll ads are typically 16:9, and Facebook requires multiple aspect ratios.

1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/9/2026
First Seen
Valid until: 12/8/2026

Sources

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