On November 9, the ByteDance Seed team officially announced the launch of its new-generation image creation model, Seedream5.5. Building on the strengths of the previous generation, the model has evolved deeply to address pain points in professional visual production workflows. Its key advances include pixel-level preservation of non-edited areas, support for up to 100 rounds of continuous creation, native RGBA transparent asset generation, and significantly improved texture and text rendering. It provides greater generation reliability for professional teams in fields such as film and television, e-commerce, advertising, and design.
Core Highlight 1: Pixel-level preservation of non-edited areas, supporting 100 stable continuous creation rounds
In real creative refinement, ideas often require multiple rounds of iteration and local edits. However, traditional models tend to lose details or suffer from quality degradation during continuous modifications.
To completely solve this pain point, Seedream5.5 uses specialized training to achieve pixel-level preservation of non-edited areas, successfully eliminating color shift. Tests show that the model can carry out up to 100 continuous creation rounds around the same artwork. Whether adding or removing clothing accessories and desktop objects, or making fine modifications to small objects such as rings and eyeglass frames, the model can perfectly handle occlusion relationships between objects and skin lighting and shadow blending, allowing complex ideas to be realized stably through multiple rounds of refinement.
Core Highlight 2: Native RGBA transparent asset generation, completely eliminating post-production cutouts
To allow generated content to blend seamlessly into downstream design and layout workflows, Seedream5.5 adds native RGBA transparent asset generation.
The model can directly output transparent or semi-transparent images with an Alpha channel, outlining complex contour edges and transparent areas with extreme precision. Whether it is bird wings with layered feather textures or artistic text that needs to blend visual elements, creators no longer need to perform tedious post-production cutouts and edge cleanup. At the same time, these transparent assets can be reused across scenarios as design assets, greatly reducing the cost of repeated production and making series creation more efficient and coherent.
Core Highlight 3: More natural texture, industry-leading precision for small text rendering
In terms of basic visual expressiveness, Seedream5.5 improves lighting, materials, and skin texture in realistic scenes, effectively reducing excessive shine and overexposure, making portrait skin and natural scenery closer to the imaging quality of real photography.
In text rendering, the model further improves the generation and layout precision of dense small text, accurately reproducing complex glyphs. Evaluation data shows that Seedream5.5's severe text corruption rate has dropped to 0.4%, and its minor text corruption rate has dropped to 1.7%, performing excellently in tests covering Chinese, English, and dense small text.
Comprehensive coverage across multiple platforms, availability doubling in various scenarios
Special evaluations conducted on the MagicArena platform show that Seedream5.5 has achieved comprehensive improvements in generation quality scores and availability across six major scenarios: e-commerce, marketing, film and television, gaming, office, and fashion design. Among them, availability in film and television and office scenarios reached more than twice that of the previous version. In specialized tests for text structure and text-to-image realism, its scores also gained positive preference.
Currently, Seedream5.5 is gradually rolling out on platforms such as Jimeng, Doubao, Doubao Work, and Volcano Ark. The official team also revealed that the Seedream5.5 series will later launch a Pro version, continuing to explore more general visual intelligence.
