Seedream 4.0 is the latest image-generation model from ByteDance’s “Seed” group. It unifies image generation and precise editing in one system, enabling users to input text and/or multiple reference images to guide outputs. Key features include:
- Producing ultra-high-definition images (up to 4K)
- Batch input & output support: generate multiple images in one go with consistency
- Prompt-based editing: one sentence can change content, layout, text on images, etc.
- Strong performance on metrics like prompt adherence, alignment, aesthetics — it claims to beat Google’s “Nano Banana” (Gemini 2.5 Flash Image) on internal benchmarks.
- Aimed at creators, designers, advertisers, marketing teams, i.e. use cases needing speed, consistency, style control.
