AI video guide
AI Video Aspect Ratio Guide
Aspect ratio changes composition, camera movement and how much room a subject has to move. Choosing it before generation usually produces cleaner framing than cropping a finished clip afterward.
16:9
YouTube, cinematic presentations, desktop-first ads
Best when lateral camera movement and environment width matter.
9:16
TikTok, Reels, Shorts, mobile ads
Keep important action near the vertical center and plan less sideways travel.
1:1
Feeds, product loops, flexible social reuse
Works well for centered products and compact subject motion.
4:3 / 3:4
Editorial, retro, portrait-heavy workflows
Useful when the model or reference composition benefits from a less extreme frame.