ByteDance has released Seedream 5.5, an image creation model now rolling out across Jimeng, Doubao, and Volcano Ark platforms. The model supports up to 100 rounds of continuous editing while keeping unedited areas pixel-identical, and introduces native RGBA transparent asset generation that eliminates the need for post-processing cutouts. Official evaluations show Seedream 5.5 reduced its severe text corruption rate to 0.4% and minor text corruption rate to 1.7%. Usability in film/TV and office scenarios is more than double that of Seedream 5.0 Pro, and the model outperforms GPT Image 2.5 Sunburst and Nano Banana 2.1 on both text structure and text-to-image realism benchmarks.