ByteDance released Seedream 5.5, supporting hundred-wheel editing

ByteDance Seed released the new generation image creation model Seedream 5.5 on November 9. This model focuses on upgrading three capabilities: achieving pixel-level preservation in non-editing areas during multi-round editing, eliminating color shifts, and reducing detail loss and image quality degradation during continuous modifications, supporting up to 100 rounds of continuous creation around the same work; natively outputting transparent or semi-transparent images with an Alpha channel, handling contour edges and transparent areas; while also improving lighting, material, and skin texture performance, reducing excessive glossiness and overexposure, and enhancing text rendering accuracy for complex glyphs and dense small text.

Evaluation shows that Seedream 5.5 has improved generation effect scores and usability in six scenarios: e-commerce, marketing, film and television, gaming, office, and fashion design compared to Seedream 5.0 Pro, with the usability in film and office scenarios exceeding twice that of the previous version. The specialized evaluation for text structure and realism uses GSB scoring, covering text-to-image and image-to-image, with positive preferences in all four comparisons compared to the previous generation, and the realism image-to-image GSB is +55.62%. Compared to GPT Image 2.5 Sunburst and Nano Banana 2.1, Seedream 5.5 performs better in text structure and text-to-image realism. In evaluations covering both Chinese and English as well as dense small text, the severe text distortion rate has dropped to 0.4%, and the slight text distortion rate has dropped to 1.7%. Currently, this model is being gradually launched on Jidream, Doubao, Doubao Work, and Volcano Ark, with a Pro version to be released later.