# ByteDance Seedream 5.5 Edit API

> Seedream 5.5 Edit by ByteDance edits images with text instructions and up to 10 reference images. It keeps unedited regions stable across many rounds of editing and can return transparent-background (RGBA) PNGs.

Source: https://www.sandbase.ai/models/bytedance/seedream/5.5/edit
API reference: https://www.sandbase.ai/models/bytedance/seedream/5.5/edit#api

## Facts

- Provider: ByteDance
- Type: Image model
- Model ID: `bytedance/seedream/5.5/edit`
- Price: From $0.04 per run
- Capabilities: image to image
- Billing: pay per use from one SandBase balance; no provider account or subscription needed

## Call it

- Unified Run API: `POST https://api.sandbase.ai/v1/run`

```bash
curl -X POST https://api.sandbase.ai/v1/run \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "bytedance/seedream/5.5/edit",
  "images": [
    "https://static.sandbase.ai/examples/bytedance/seedream/5.0/pro/edit/input_images_0.png",
    "https://static.sandbase.ai/examples/bytedance/seedream/5.0/pro/edit/input_images_1.png",
    "https://static.sandbase.ai/examples/bytedance/seedream/5.0/pro/edit/input_images_2.png"
  ],
  "prompt": "Replace the product in Figure 1 with that in Figure 2. Seamlessly render the logo in Figure 3 into the product design, in a frosted glass texture.",
  "background": "auto",
  "num_images": 1,
  "resolution": "2K",
  "output_format": "png"
}'
```

The response returns a run id; poll `GET https://api.sandbase.ai/v1/run/{id}` until the status is `completed` or `failed`.

## FAQ

### How do I call ByteDance Seedream 5.5 Edit through SandBase?

Create a SandBase API key, then send requests with the model ID "bytedance/seedream/5.5/edit" to Unified Run API (/v1/run) at https://api.sandbase.ai. The request examples on this page show the exact payload.

### Do I need a separate ByteDance account?

No. One SandBase API key and balance gives you access to ByteDance Seedream 5.5 Edit and the other models in the catalog; you do not need to sign up with ByteDance separately.