# ByteDance Seedream 5.5 Text to Image API

> Seedream 5.5 by ByteDance generates photorealistic images from text prompts, with accurate small and multilingual text and native transparent-background (RGBA) output. Choose 1K, 1.5K or 2K resolution and ten aspect ratios.

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

## Facts

- Provider: ByteDance
- Type: Image model
- Model ID: `bytedance/seedream/5.5`
- Price: From $0.04 per run
- Capabilities: text 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",
  "prompt": "Vibrant editorial of a model in contemporary fashion fused with West African textile patterns and beadwork, Campbell Addy bold aesthetic, saturated palette, dramatic studio lighting, celebratory cultural richness, striking contemporary portraiture",
  "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 Text to Image through SandBase?

Create a SandBase API key, then send requests with the model ID "bytedance/seedream/5.5" 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 Text to Image and the other models in the catalog; you do not need to sign up with ByteDance separately.