# Bria | Product Holding

Bria ProductHolding creates product-in-hand edits from person and product photos while preserving identity, pose, background, and original framing.

## API Information

- **Model Slug:** bria-product-holding
- **Branded URL:** https://www.eachlabs.ai/bria/bria/bria-product-holding
- **Provider:** Bria
- **Category:** Image to Image
- **Output Type:** image
- **Status:** active
- **Base Cost:** $0.04 per execution
- **Interactive Demo:** https://www.eachlabs.ai/ai-models/bria-product-holding

## Pricing

- **Charge Type:** dynamic
- **Estimate:** $0.04 per execution
- **Pricing Details:** default: $0.04

## Input Schema

| Parameter | Type | Required | Default | Constraints | Description |
|-----------|------|----------|---------|-------------|-------------|
| person_image | string | Yes | - | - | Photo of the person to edit. Accepted formats: JPEG, JPG, PNG, WEBP. |
| product_images | array | Yes | - | - | One to three product images, such as packaging, a second angle, or a companion item. Accepted formats: JPEG, JPG, PNG, WEBP. |
| instruction | string | No | - | - | Optional shot direction. Use a short edit instruction, not a full prompt. |
| aspect_ratio | string | No | - | 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9 | Optional output aspect ratio. Leave empty to preserve the person image's original framing. |
| seed | integer | No | - | 0–2147483647 | Optional seed for reproducible generation. |
| output_type | string | No | png | png, jpeg | Output image format. Default: png. |

## Example Request

```bash
curl -X POST https://api.eachlabs.ai/v1/prediction/ \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "bria-product-holding",
  "input": {
    "person_image": "https://cdn-us.eachlabs.ai/defaults/8f9a0869a95c4be988698e476c3a0881.png",
    "product_images": [
      "https://cdn-us.eachlabs.ai/defaults/3a76899af7ca42a7b49418590f2e85b4.png"
    ]
  }
}'
```

## Output Schema

Response returned by `GET /v1/prediction/{id}` when the job completes:

```json
{
  "status": "success",
  "predictionID": "string",
  "output": "string (URL of generated image)",
  "metrics": {
    "predict_time": "number (seconds)"
  }
}
```

## Polling

```bash
curl https://api.eachlabs.ai/v1/prediction/{PREDICTION_ID} \
  -H "Authorization: Bearer YOUR_API_KEY"
```

| Status | Meaning |
|--------|---------|
| `processing` | Still running — poll again |
| `success` | Done — read `output` |
| `error` | Failed — read `message` / `details` |

## Webhook (alternative to polling)

Pass `"webhook_url": "https://your.host/path"` in the create request. Eachlabs POSTs this payload when the job ends:

```json
{
  "exec_id": "prediction-uuid",
  "status": "succeeded",
  "output": "https://...",
  "error": ""
}
```

`status` is `"succeeded"` or `"failed"`. `exec_id` equals the `predictionID` from create. Return 2xx within 30 seconds.

## Errors

Error body: `{ "status": "error", "message": "...", "details": "..." }`

| Code | Meaning |
|------|---------|
| `400` | Invalid input |
| `401` | Missing / invalid `Authorization` bearer token |
| `404` | Unknown model or prediction id |
| `429` | Rate limit — 100 creates / min, 10 concurrent per key |
| `5xx` | Retry with backoff |

## Usage Notes

- API Base URL: `https://api.eachlabs.ai/v1`
- Authentication: send `Authorization: Bearer YOUR_API_KEY`. Generate a key from the Eachlabs dashboard at https://www.eachlabs.ai/dashboard/api-keys.
- File-typed parameters (`*_url`, `image_url`, `video_url`, `audio_url`, etc.) accept publicly-reachable HTTPS URLs only. Upload your asset first (GCS / S3 / your CDN) and pass the resulting URL. Data-URIs and localhost URLs are rejected.
- For structured parameters (arrays / objects) send real JSON values, not stringified payloads.
- Monetary values are reported in USD; per-token / per-megapixel rates may be billed in micro-cents internally.
- Prefer `webhook_url` over polling for long-running predictions — see the Webhook Callback section.