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  1. Models
  2. Image
  3. Bytedance

Seedream 5.5

Try Model

Seedream 5.5 by ByteDance generates images from text and edits images with up to 10 ordered references. Choose from fifteen aspect ratios and 1K, 1.5K, 2K or 3K output. Save as PNG or JPEG, with transparent backgrounds available in PNG.

Added Nov 6, 2026

Details

Approx. Price
$0.020 per image
Model type
both

Settings

Generation controls available for this model.

Images Per Run

Up to 4

Output images

Input Images

Up to 10

Reference/edit images accepted • Route max 30 MB

Output Sizes

1k (1K)
1.5k (1.5K)
2k (2K)
+1 more

Aspect ratio

Select

Default

auto

Options (16)

Auto (input image or square), 1:1, 1:2, 2:1 +12 more

Background

Select

Default

auto

Options (3)

auto, transparent, opaque

Transparent backgrounds require PNG.

Number of Images

Default

1

Output format

Select

Default

png

Options (2)

PNG, JPEG

Resolution

Default

1k

Options (4)

1k (1K), 1.5k (1.5K), 2k (2K), 3k (3K)

Benchmarks

No public benchmark scores for this model yet.

Examples

Loading examples…

Related image models

Compare Seedream 5.5 with similar models from the same provider or model family.

Seedream 5.5 Layer Decomposition

bytedance/seedream-v5.5/layer-decomposition

Separate one image into a base image followed by transparent PNG layers. Add an optional prompt to guide the split, choose 1K, 1.5K or 2K, and set a limit of 2 to 100 images including the base. The charge uses the selected limit even when fewer images are returned. The base can be PNG or JPEG.

Seedream 5.0 Flash

bytedance/seedream-v5.0-flash

Fast Seedream 5.0 image generation. Upload images to edit them.

Seedream 5.0 Flash Layerize

bytedance/seedream/v5/flash/layerize

Separate an image into a base image and editable layers.

Seedream 5.0 Pro

bytedance/seedream-v5.0-pro

ByteDance Seedream 5.0 Pro for high-quality text-to-image generation and image editing. Upload images to switch to edit mode.

Seedream 5.0 Lite

seedream-v5.0-lite

ByteDance Seedream 5.0 Lite for text-to-image and image editing with strong prompt adherence, improved typography, and up to 4K output. Upload an image to switch to edit mode. Minimum total pixels: 3,686,400.

Seedream 5.0 Lite Sequential

seedream-v5.0-lite-sequential

Seedream 5.0 Lite Sequential generates consistent multi-image sets in one run, with unified style, palette, and character continuity. Upload images to switch to edit-sequential mode. Supports up to 4K output.