ByteDance Launches Seedream 4.0 to Challenge Google’s Nano Banana
ByteDance has introduced Seedream 4.0, its latest AI image generation tool with advanced editing capabilities. The tech company’s AI division highlighted that this tool aims to compete directly with Google DeepMind’s Nano Banana, also called Gemini 2.5 Flash Image. In internal tests using the Magicbench benchmark, Seedream 4.0 reportedly outperformed Gemini 2.5 Flash Image in prompt adherence, alignment, and aesthetics. Consequently, the tool positions ByteDance as a strong contender in AI-powered image creation.
Key Features of Seedream 4.0
Seedream 4.0 offers multiple capabilities for creative professionals. First, it allows image editing through text prompts, enabling users to add, delete, replace, or modify elements efficiently. Next, the tool can extract key details from reference images, including character design, artistic style, and product features, which supports character creation, style transfer, and product design.
Additionally, Seedream 4.0 supports multiple image inputs for composite editing. Users can combine images, replace elements, or transfer styles while clearly specifying the edits needed from each input. The platform also allows the creation of image sequences with consistent character continuity and unified style. This feature is especially useful for storyboarding, comic creation, or product design projects that require a cohesive visual identity.
Prompt Guidelines for Optimal Results
To generate precise images, ByteDance recommends crafting clear prompts. Users should describe the scene in natural language, detailing the subject, action, and environment. Furthermore, specifying the application scenario ensures the output matches the intended use. Style enhancements can be achieved by using precise style keywords or reference images, while text accuracy improves when double quotation marks are applied for any text to appear in the generated image.
