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ByteDance SeedImage modelActive

Seedream 5.5

Summary

ByteDance Seed introduced Seedream 5.5 as a multimodal image model on November 9, 2026. The provider describes text-to-image generation and image editing. It says untouched regions can remain pixel-identical through up to 100 rounds of edits.

Seedream 5.5 can produce RGBA images with transparent or semitransparent backgrounds, according to the provider. Its official model page links to Dreamina. The official sources reviewed do not list an API ID, a ModelArk price, or output limits.

All specifications

Input and output

Input
The provider describes text-to-image generation and image editing.
Source: Input
Output
Images, including RGBA with transparent or semitransparent backgrounds.
Source: Output

Watermarking and provenance

AI watermarking refers to invisible signals embedded in the output. Visible marks and provenance metadata are listed separately. Unknown means there is insufficient evidence for that particular field.

AI watermarking
Unknown
no source
Watermarking technique
Not known
no source

Licence and access

Shutdown
None announced
no source

API

API model ID
Not listed on the official model pages reviewed.
Source: API model ID

Further details

Access
The official model page points to Dreamina for access.
Source: Access
Multi-turn editing
The provider says it preserves unedited image regions at pixel level across up to 100 rounds of editing.
Source: Multi-turn editing

Prices

Price
The official ModelArk pricing list reviewed does not include Seedream 5.5; it lists no price for this model.Source