# SeedDream v4.5 Edit (`seedream_v4_5/edit`)

> ByteDance SeedDream. Image editing via text prompt.

- Capability: Images (tool `image`) — Image to image
- Price: from $0.50 per run (1 credit = $0.01). Exact price for a request: POST https://api.varg.ai/v2/estimate
- Typical time: ~15 s
- JSON Schema: https://api.varg.ai/v2/tools/image?model=seedream_v4_5%2Fedit (public, no key)
- Try it: https://varg.ai/dashboard/tools/playground?model=seedream_v4_5%2Fedit

## Call it

REST: `POST https://api.varg.ai/v2/tools/image/call` with `Authorization: Bearer $VARG_API_KEY` (create a key at https://varg.ai/dashboard/api).
It answers `202` with a job right away. Poll `GET /v2/jobs/{id}` until `status` is `completed`, then read `output.outputs[0].url` — or pass `options.webhook_url` and get the finished job POSTed to you.

```bash
curl -X POST https://api.varg.ai/v2/tools/image/call \
  -H "Authorization: Bearer $VARG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "seedream_v4_5/edit",
  "prompt": "change the background to a tropical beach"
}'
```

MCP: the varg server `https://mcp.varg.ai/mcp` (OAuth sign-in, no key) runs it with `call_tool`:

```json
{
  "tool": "image",
  "input": {
    "model": "seedream_v4_5/edit",
    "prompt": "change the background to a tropical beach"
  },
  "wait": true
}
```

## Inputs

| field | type | required | default | allowed | description |
|---|---|---|---|---|---|
| `model` | string | yes | — | `seedream_v4_5/edit` or a route key below | Which model runs the job. |
| `prompt` | string | no | — | — | — |
| `files` | array of { url } | no | — | — | — |
| `aspect_ratio` | string | no | — | e.g. 16:9 \| 9:16 \| 1:1 \| 4:3 \| 3:4 \| 21:9 \| auto | — |

Media inputs are URLs. Upload a local file first with `POST /v2/files` and pass the returned URL.

## Provider options

Optional, per provider, under `provider_options.<provider>`. Only the options of the provider that runs the job apply — pin a route to choose it.

### provider_options.fal

| field | type | required | default | allowed | description |
|---|---|---|---|---|---|
| `prompt` | string | no | — | — | — |
| `image_urls` | array of URL strings | no | — | — | — |
| `seed` | integer | no | — | -9007199254740991–9007199254740991 | — |
| `image_size` | string | no | — | square_hd \| square \| portrait_4_3 \| portrait_16_9 \| landscape_4_3 \| landscape_16_9 | — |
| `output_format` | string | no | — | jpeg \| png | — |

## Routes

`"model": "seedream_v4_5/edit"` picks a route automatically (priority order, then the inputs you send). To pin one, pass its key as `model`.

| model key | provider | modality | price from | typical time |
|---|---|---|---|---|
| `fal:seedream_v4.5/edit` | fal | image-to-image | $0.50 | ~15 s |

## Example output

- image/png: https://s.varg.ai/varg/1782503878119-biwt6l48vod.png

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Catalog version 2026-11-11T12:59:09.901887+00:00. All models: https://varg.ai/models/llms.txt