| Parameter | Required | Type | Default | Range / Options | Description |
|---|---|---|---|---|---|
prompt* | Yes (*) | string | Sample prompt | Text | What should change, and what must stay. |
images* | Yes (*) | array | Sample image | 1-10 images | Reference pictures. Each one adds $0.008. |
aspect_ratio | No | string | auto | auto, plus the fifteen frames | auto follows the first image. |
resolution | No | string | 1K | 1K, 1.5K, 2K | Output tier for the one edited still. |
output_format | No | string | png | png, jpeg | A transparent result needs png. |
background | No | string | auto | auto, transparent, opaque | transparent needs png. |
One edited still, plus $0.008 for every reference image. 1K and 1.5K share the output rate. 2K is higher. A 1K edit with one reference is $0.027. A 2K edit with one reference is $0.040. Ten references at 1K are $0.099.
| Resolution | Output | Each input image |
|---|---|---|
| 1K | $0.019 | $0.008 |
| 1.5K | $0.019 | $0.008 |
| 2K | $0.032 | $0.008 |
Seedream 5.5 Edit takes one to ten reference images and a prompt, then returns one edited still. Say what should change and what must stay. The same request can ask for a transparent PNG.
Seedream 5.5 Edit accepts 1 to 10 images. JPEG, PNG, WebP, BMP, TIFF, GIF, HEIC, and HEIF are the usual formats, up to 30 MB each. Each reference adds $0.008, on top of the one output image.
auto is the default. Seedream 5.5 Edit then chooses the frame instead of forcing 1:1. You can still pick one of the fifteen ratios when the delivery size is fixed.
Seedream 5.5 Edit is built for repeated edits that leave untouched areas in place. Pass the latest still back in as a reference and describe only the next change. Preservation is a goal of the model, not a pixel-perfect guarantee.
Yes. Set background to transparent and the file to png. JPEG plus transparency is rejected before the call. The reference images do not need an alpha channel of their own.
Ask for one change at a time. A prompt that recolors, relights, and replaces the subject together is harder for Seedream 5.5 Edit to keep stable. Name the region and the thing that must not move.
Yes. Try Seedream 5.5 Edit in the RunComfy web UI, then send the same images, prompt, ratio, resolution, format, and background through the RunComfy API. RunComfy does not promise a fixed latency.
The output is $0.019 at 1K or 1.5K and $0.032 at 2K. Every reference image adds $0.008. One 1K edit with one reference is $0.027. One 2K edit with one reference is $0.040. Failed requests are not billed.
RunComfy is the premier ComfyUI platform, offering ComfyUI online environment and services, along with ComfyUI workflows featuring stunning visuals. RunComfy also provides AI Models, enabling artists to harness the latest AI tools to create incredible art.
