ByteDance · Transparent PNG, Reference Editing and Layers

Seedream 5.5

Create, Refine and Separate Your Images

Generate images with native transparency, combine visual references, or separate a scene into a background and transparent object layers.

Try Seedream 5.5 View specs

Maximum resolution setting

Editing reference limit

PNG

Native transparent output

What's new

Create, Refine and Separate Your Images

Native Transparency

Choose PNG and a transparent background to generate a cutout with a real alpha channel.

Reference-Guided Editing

Use up to ten reference images to guide an edit. Each input image contributes to the credit estimate.

Layer Decomposition

Choose the Layers tab under Seedream 5.5 in Image to Image to split one existing image into a base and transparent object layers.

See it in action

Generate, Edit and Separate Layers

Transparent PNG generation, a 2K image, reference-guided edits, and one complete layer breakdown. Open the layer comparison to see the original scene and all five output files together.

Create with Seedream 5.5

Generate a new image, edit with references, or split an existing image into layers.

Try Seedream 5.5

Overview

Model at a glance

Seedream 5.5 supports text-to-image generation and reference-guided editing with PNG or JPEG output. Use PNG for transparent backgrounds.

Layer decomposition is a separate workflow. It returns a background base followed by transparent object layers; the maximum-image setting includes the base image.

Resolution settings: 1K, 1.5K, 2K
Output formats: PNG, JPEG
Editing inputs: 1–10 reference images

Capabilities

Key features

Transparent Product Cutouts

Create subjects on a transparent background and retain the alpha channel in the PNG download.

Controlled Visual Edits

Describe a targeted change or combine references into one scene. Review the output for unwanted changes.

Separate Objects into Layers

Download the background and extracted objects together as a ZIP of PNG images.

Specs

Technical specifications

Generation and Editing

Resolution	1K, 1.5K, 2K
Aspect ratios	15 choices from 1:3 to 3:1, including 1:1, 9:16 and 16:9
Formats	PNG and JPEG; transparent backgrounds require PNG

Layer Decomposition

Input	One PNG or JPEG image
Maximum images	2–100, including the base; SharkFoto defaults to 5
Output	Base image followed by transparent PNG layers; dimensions may vary

In practice

Use cases

Product Assets

Create transparent cutouts for layouts and catalogs.

Reference-Based Composition

Bring a product from one reference into a scene from another.

Design Reuse

Separate objects and backgrounds for further compositing.

Honest look

Current limitations

PNG Required for Transparency

JPEG has no alpha channel. Choose PNG when you need a transparent background.

Layer Count Determines Cost

Layer decomposition is charged for the requested maximum image count even if fewer images are returned.

Layer Dimensions Vary

Extracted layers can have different dimensions. Do not assume they are aligned layers in a PSD document.

Review Edits

Generated edits can alter details. Check the image before using it.

FAQ

Frequently asked questions

Does Seedream 5.5 generate SVG or animated GIF?

This integration outputs PNG and JPEG. Use GPT Image 2.6 for the separate SVG and GIF generation workflows.

How do I make a transparent image?

Choose Seedream 5.5, PNG output and a transparent background.

How do I split an image into layers?

Open Image to Image, select Seedream 5.5 and choose the Layers tab. Upload one image and set Maximum Images, including the base image.

How are credits calculated?

Generation depends on resolution. Editing also charges per input image. Layer decomposition charges for the requested maximum image count; check the live estimate.

Is Seedream 5.0 still available?

Yes. Seedream 5.5 is added separately and does not replace the existing model.

Can text-to-image generate separate layers in one request?

The current text-to-image endpoint returns a flat PNG or JPEG. Generate an image first, then use the Layers tab to decompose it. These are two separately charged requests.

Create with Seedream 5.5

Start with a new image, reference-guided edit or layer decomposition.

Try Seedream 5.5