# Seedream V4 | Edit

Seedream V4 Edit is an advanced image editing model that enables realistic, high-quality modifications such as background changes, object addition, or removal.

## API Information

- **Model Slug:** seedream-v4-edit
- **Branded URL:** https://www.eachlabs.ai/bytedance/seedream-v4/seedream-v4-edit
- **Provider:** ByteDance
- **Category:** Image to Image
- **Output Type:** array
- **Status:** active
- **Version:** 0.0.1
- **Base Cost:** $0.03 per generated image
- **Estimated Processing Time:** 15 seconds
- **Last Updated:** 2026-06-29
- **Interactive Demo:** https://www.eachlabs.ai/ai-models/seedream-v4-edit

## Pricing

- **Charge Type:** dynamic
- **Estimated Price (default example):** $0.0300
- **Pricing Details:** $0.03 per generated image

### Pricing Rules

| Condition | Pricing |
| --- | --- |
| Rule 1 | $0.03 per generated image |

## Input Schema

| Parameter | Type | Required | Default | Constraints | Description |
|-----------|------|----------|---------|-------------|-------------|
| prompt | string | Yes | - | - | The text prompt used to edit the image |
| image_size | string | No | square_hd | square_hd,square,portrait_4_3,portrait_16_9,landscape_4_3,landscape_16_9,auto,auto_2K,auto_4K | The size of the generated image. Width and height must be between 512 and 4096. |
| num_images | integer | No | 1 | 1–6 | Number of times to retry generation with the prompt. |
| seed | integer | No | - | - | Random seed to control the stochasticity of image generation. |
| image_urls | array | Yes | - | 1–6 | List of URLs of input images for editing. |
| enable_safety_checker | boolean | No | true | - | If set to true, the safety checker will be enabled. |

## 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": "seedream-v4-edit",
  "input": {
    "prompt": "Dress the model in the clothes and shoes.",
    "image_urls": [
      "https://storage.googleapis.com/magicpoint/inputs/seedream-v4-edit-input-image1.jpeg",
      "https://storage.googleapis.com/magicpoint/inputs/seedream-v4-edit-input-image2.jpeg",
      "https://storage.googleapis.com/magicpoint/inputs/seedream-v4-edit-input-image3.jpeg"
    ]
  }
}'
```

## Output Schema

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

```json
{
  "status": "success",
  "predictionID": "string",
  "output": "array",
  "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 |

## Overview

**seedream-v4-edit — Image Editing AI Model**

Developed by Bytedance as part of the **seedream-v4** family, **seedream-v4-edit** is an advanced **image-to-image AI model** that delivers realistic, high-quality modifications like background changes, object addition, or removal with exceptional speed and consistency. This model excels in **AI image editing** by supporting up to 14 reference images for precise subject locking and multi-image editing, enabling complex scene blends while preserving intricate details across outputs. Users searching for a powerful **Bytedance image-to-image** solution can generate up to 4K resolution edits in seconds, topping benchmarks in image editing quality and prompt adherence.

## 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.