# GPT Image Hub prompt

## Expression Grid Identity Swap
- URL: https://www.gptimagehub.com/library/expression-grid-identity-swap
- Generator URL: https://www.gptimagehub.com/generate?promptId=oss-ym-mm-10243
- Markdown URL: https://www.gptimagehub.com/api/agent/markdown?path=%2Flibrary%2Fexpression-grid-identity-swap
- Category: Portrait & Photography
- Model: gpt-image-2-5-sunburst
- Aspect ratio: 2:3
- Style: photorealistic
- Tags: expression grid, identity swap, portrait, contact sheet, photobooth, image-to-image
- Updated: 2026-10-27T21:41:58.098Z
- Created: 2026-10-27T21:41:58.098Z

Applies a target subject's facial identity across an entire 16-panel expression photo sheet. Provide your own reference portrait and expression grid image to change the person and poses.

### Full prompt
```text
{
  "generation_request": {
    "meta_data": {
      "task_type": "identity_swap_into_existing_expression_grid",
      "version": "v1.0_4x4_expression_grid"
    },
    "input": {
      "mode": "image_to_image",
      "reference_structure_image": "the reference photo showing a [4x4 expression grid]",
      "reference_identity_portrait": "the reference photo of the target person",
      "preserve_identity": true,
      "preserve_facial_features": true,
      "preserve_hairstyle": true,
      "instructions": "Preserve the precise 4x4 grid layout, individual panel cropping, lighting, and simple background from the structure image. Replace the individual across all sixteen panels with the identity from the reference portrait, accurately replicating each panel's facial expression, gaze direction, head tilt, and hand gesture with realistic skin texture and anatomical precision."
    },
    "style": {
      "lighting": "matched to reference grid image",
      "background": "neutral studio background matching reference grid",
      "texture": "natural pore detail, subtle analog film grain, realistic skin rendering"
    },
    "negative_constraints": [
      "distorted hands",
      "extra digits",
      "inconsistent facial features",
      "plastic smooth skin",
      "asymmetrical eyes",
      "text",
      "watermark"
    ]
  }
}
```