Physix Frontier · News Briefing Card (IT Home · Nov 9, 2026)

ByteDance launches Seedream 5.5 image model with 100-round editing

KEY FACTS

ByteDance's Seed team has released Seedream 5.5, a next-generation image creation model.
The new model supports up to 100 consecutive editing rounds on the same piece, keeping non-edited regions pixel-identical.
The model can natively output transparent or semi-transparent images with an alpha channel, eliminating the need for background removal.
In tests across film and office scenarios, Seedream 5.5's usable rate reached more than twice that of the previous version.
The model is rolling out on platforms including Jimeng, Doubao and Volcano Ark, with a Pro version to follow.

KEY DATA

About 0.28 yuanCost per 2K square image edit

0.4%Severe text corruption rate

1.7%Minor text corruption rate

+55.62%Photorealism image-to-image GSB

PHYSIX OBSERVATION

100-round editing that stays on track and direct transparent-asset output point to a design workflow rather than single-image generation, and ByteDance is pushing toward production tools. At 0.28 yuan per image, the cost is less than half the previous generation's, a clear signal of a price war. But most evaluations are the company's own platform data, so real-world commercial stability still needs third-party verification; whether the Pro version can hold up in professional scenarios is the key question.

Source: IT Home report