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Best for · vertical social video (9:16)

Best AI video generator for vertical social video (TikTok, Reels, Shorts)

All three models accept a native 9:16 ratio through the API (720×1280), so you don't have to crop a landscape clip. Our vertical test was a TikTok-style product spin.

Our pick

Veo 3.1 Fast 8.0/10

1. Veo 3.1 Fast8.0$0.60/clip
2. Runway Gen-4.57.8$0.48/clip
3. Kling 3.07.3$0.52/clip

One vertical prompt this month. More 9:16 prompts are planned for November.

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Prompt 9

Sneaker product spin (9:16)

“A TikTok-style product shot: a sneaker rotating on a pedestal, studio lighting, 9:16.”

Veo 3.1 Fast 8.0
4s · audio · ~60 cr ($0.60) · 37s render

adherence 8motion 7quality 9artifacts 8
Premium studio lighting; minor shape drift during rotation.

Runway Gen-4.5 7.8
4s · ~48 cr ($0.48) · 68s render

adherence 8motion 8quality 8artifacts 7
Smooth rotation on pedestal; shoe cropped at frame edges.

Kling 3.0 7.3
4s · audio · ~52 cr ($0.52) · 162s render

adherence 8motion 7quality 7artifacts 7
Rotating sneaker on clear pedestal, vertical; plain lighting.

Related

FAQ

What is the best AI video generator for vertical social video (9:16)?

In our October 2026 tests (prompt 9), Veo 3.1 Fast scored highest at 8.0/10, ahead of Runway Gen-4.5 (7.8) and Kling 3.0 (7.3). One vertical prompt this month. More 9:16 prompts are planned for November.

How much does each output cost?

Veo 3.1 Fast: $0.60 per 4s clip; Runway Gen-4.5: $0.48 per 4s clip; Kling 3.0: $0.52 per 4s clip (Runway Dev API pricing, October 2026).