# 9:16 vertical

Frame / Aspect ratio / Social. Checked 2026-10-13.

Full-screen vertical: TikTok, Reels, Shorts, Stories.

- Use when: All vertical social video and story ads.
- Phrase: 9:16 vertical frame, the subject centred with room above and below for captions
- Page: https://directorchair.ai/ratio/ratio-9-16
- JSON: https://directorchair.ai/api/ratio/ratio-9-16.json

## Watch out

- 9:16 is the tallest ratio Nano Banana makes; for anything taller, generate the nearest ratio and crop. (measured; Director Chair field notes on image prompting)

## Prompts

### Nano Banana Pro

```
[your subject] in [your setting]. Frame the image as a vertical 9:16 poster, optimizing the composition for a mobile phone screen.
```

### Nano Banana 2

```
[your subject] in [your setting]. Frame the image as a vertical 9:16 poster, optimizing the composition for a mobile phone screen.
```

### GPT Image 2.5

```
A photograph of [your subject] in [your setting].
People and framing: 9:16 vertical frame, the subject centred with room above and below for captions
Exclusions: no extra text, no watermark, no logo.
```

### Seedream 5

```
[your subject] in [your setting]. 9:16 vertical frame, the subject centred with room above and below for captions.
```

### Seedance 2.5

```
Scene: [your subject] in [your setting].
First frame: 9:16 vertical frame, the subject centred with room above and below for captions
Shot 1 (0:00 to 0:05): one continuous shot
```

### Seedance 2.0

```
Scene: [your subject] in [your setting].
First frame: 9:16 vertical frame, the subject centred with room above and below for captions
Shot 1: one continuous shot
```

### Kling 3.0

```
[your subject]. The scene is [your setting]. 9:16 vertical frame, the subject centred with room above and below for captions.
```

### Veo 3.1

```
9:16 vertical frame, the subject centred with room above and below for captions. [your subject] in [your setting]. Framing and subject stay as in the start image.
```

## Goes well with

- 4:5 portrait: https://directorchair.ai/ratio/ratio-4-5
- 16:9 landscape: https://directorchair.ai/ratio/ratio-16-9

## Source

The first Director Chair spec, own words

Text CC BY 4.0, Director Chair (directorchair.ai). Reference clips and their card texts belong to their makers.