Seedream 5.5 adds transparent assets and more stable editing
ByteDance’s Seedream 5.5 adds native transparent and translucent image assets and claims better preservation of untouched regions across repeated edits.
Seedream 5.5, announced November 9, addresses two practical sources of visual production work: separating an asset from its background and keeping earlier decisions intact while revising an image.
It adds native RGBA output, including partial transparency, so an asset can be placed over different backgrounds without first removing a baked-in backdrop. [1][2]
ByteDance also demonstrates a sequence of 100 edits and says the model better preserves unedited pixels, color and detail. That is a vendor demonstration, not a guarantee that every sequence will preserve identity, lettering or geometry. The useful test is a small set of your own demanding revisions, with the original visible beside the result. [1]
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- ByteDance Seed — Seedream 5.5 launch
November 9 announcement; RGBA output and repeated-edit demonstrations are provider claims, not independent reproduction.
- ByteDance Seed — Seedream 5.5 product
Product demonstrations and stated transparent-asset support. Commercial reuse rights for third-party examples are not assumed.
Images & figures
A transparency channel lets the same asset blend with different backgrounds.
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