Seedream 4.0
Fast, consistent 4K-ready image creation
Try it
Leave empty for random
You can fill this in now — signing in happens when you run it, and your inputs come with you.
How to use Seedream 4.0
- Fill in Reference images (max 10) in the form on this page, and pick the task to run.
- Adjust anything in the parameter table below — the defaults are the platform's recommended values.
- Run it; signing in starts the charge, and the result (Text to image) appears above the form, ready to download.
Use it from the API
The same run, as a request. Send your API key as a bearer token; poll the returned request_uid until it is done.
curl -X POST https://api.melunox.com/v1/ai/async/tasks \
-H "Authorization: Bearer $WISAVEN_API_KEY" \
-H "X-App-Id: wisaven" -H "Content-Type: application/json" \
-d '{
"model": "seedream-4-0",
"task": "text-to-image",
"input": {
"image_urls": "https://…",
"prompt": "your prompt here",
"aspect_ratio": "1:1",
"resolution": "1K"
}
}'At a glance
- Developer
- ByteDance Seed
- Can do
- Text to image, Image to image
- Credits per run
- 3 credits
- Typical time
- ~15s
- Added
- 2026-08-11
Parameters
What the model takes. The form above is generated from exactly this list, and the API accepts the same field names.
| Parameter | Type | Default | Range / options |
|---|---|---|---|
image_urlsrequiredReference images (max 10) | Image upload | — | ≤ 10 |
promptPrompt | Long text | — | — |
aspect_ratioAspect ratio | Choice | 1:1 | 1:1 · 16:9 · 9:16 · 4:3 · 3:4 · 3:2 · 2:3 · 21:9 |
resolutionQuality | Choice | 1K | 1K · 2K · 4K |
num_imagesNumber of images | Choice | 1 | 1 · 2 · 3 · 4 |
seedSeed | Number | — | — |
What Seedream 4.0 costs
Seedream 4.0 costs about 3 credits a run, usually back in around 15 seconds. Credits are shared across every workspace, new accounts start with free ones, and a failed run is refunded.
Seedream 4.0 compared with other Image models
Same workspace, different trade-offs — credits, speed and what each one can be asked for.
| AI models | Can do | Credits per run | Typical time |
|---|---|---|---|
| Seedream 4.0 | Text to image, Image to image | 3 | ~15s |
| Qwen Image 2.0 Pro | Text to image, Image to image | 6 | ~30s |
| Qwen Image Plus | Text to image | 4 | ~20s |
| Qwen Image | Text to image | 4 | ~40s |
| Wan 2.7 Image Pro | Text to image, Image to image | 10 | ~20s |
Questions
What can Seedream 4.0 do?
Text to image, Image to image. Fill in the parameters on this page to try it.
How many credits does Seedream 4.0 cost?
About 3 credits per run, charged at the platform's live price when you run it. One credit balance covers every workspace.
How long does it take?
Around 15 seconds; heavier settings or a queue take longer, and the page shows progress.
Do I need an account, and who owns the output?
Browsing and filling in the form need no account; running it does (new accounts start with free credits). What you generate is yours, personally or commercially, subject to the terms.
Other models like this
Where this model is used: Image·All models