# GPT Image Hub prompt

## Photorealistic Close-Up Portrait Specification
- URL: https://www.gptimagehub.com/library/photorealistic-close-up-portrait-specification
- Generator URL: https://www.gptimagehub.com/generate?promptId=oss-ym-mm-10249
- Markdown URL: https://www.gptimagehub.com/api/agent/markdown?path=%2Flibrary%2Fphotorealistic-close-up-portrait-specification
- Category: Portrait & Photography
- Model: gpt-image-2-5-sunburst
- Aspect ratio: 9:16
- Style: photorealistic
- Tags: portrait, close-up, photorealistic, json prompt, vertical portrait, template
- Updated: 2026-10-26T17:46:53.307Z
- Created: 2026-10-26T17:46:53.307Z

Generates a photorealistic vertical portrait using a clean JSON specification. Customize the portrait type and subject details within the brackets to suit your character.

### Full prompt
```text
{
  "image_generation_specification": {
    "meta": {
      "type": "[photorealistic close-up portrait]",
      "aspect_ratio": "9:16",
      "target_resolution": "4K UHD"
    }
  }
}
```