Doubao's Seedream 5.5 image creation model has been released, featuring pixel-level multi-round editing and native RGBA transparent material support.

Volcengine has launched the Seedream 5.5 image creation model from Doubao, supporting pixel-level controllable editing. Testing shows that after over a hundred rounds of continuous edits, subjects outside the specified area maintain consistent features, composition ratios, and lighting styles. The model also supports native RGBA transparent material generation, with output capable of up to 100 layers of transparency. Compared to Seedream 5.0 Pro, editing a single 2K image costs 0.28 yuan—a 60% reduction in price—and generation speed is nearly 40% faster. The API will launch on Volcengine Ark this week; C-end users can experience it via Jimeng and Doubao.