Seedream 4
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About
Seedream 4 by ByteDance is a unified AI image generation and editing model capable of creating stunning images up to 4K resolution (4096×4096 pixels) from text prompts or transforming existing images with precise single-sentence edits. This cutting-edge text-to-image and image-to-image model combines generation and editing capabilities in one powerful tool, supporting multiple resolutions (2K, 4K, custom) and aspect ratios for diverse creative needs. Seedream 4 uniquely features sequential image generation mode that can automatically create up to 15 related images in a series, perfect for storyboards, product variations, or iterative design exploration. Perfect for graphic designers creating ultra-high-resolution print materials, photographers needing precise photo edits through natural language, e-commerce businesses generating product variations, content creators producing social media assets in multiple formats, and digital artists requiring both generation and editing in a single workflow. Features multi-reference image support (1-10 images) for style consistency and character preservation, customizable dimensions up to 4K, sequential generation for creating image series, and flexible aspect ratios (16:9, 9:16, 1:1, 4:3, match input). The single-sentence editing capability allows intuitive modifications like 'change the dress to red' or 'add sunset lighting' without complex masking or selection tools.
Percs
Up to 4K resolution support
Precise single-sentence editing
Multi-reference generation
Fast generation speed
High accuracy editing
Excellent detail preservation
Settings
Image Size- Select the resolution for image generation: 2K (2048×2048, balanced quality and speed), 4K (4096×4096, ultra-high quality), or 'custom' to specify exact dimensions.
Aspect Ratio- Choose the aspect ratio for the generated image: match_input_image (preserves original ratio), 16:9 (landscape), 9:16 (portrait), 1:1 (square), 4:3 (classic), or custom ratios.
Custom Width- Custom image width in pixels (only used when size='custom'). Range: 1024-4096 pixels. Higher resolutions require more processing time but deliver superior quality.
Custom Height- Custom image height in pixels (only used when size='custom'). Range: 1024-4096 pixels. Must be compatible with the width for optimal results.
Sequential Generation- Enable automatic sequential image generation to create a series of related images. 'auto' mode generates up to max_images in sequence. Perfect for storyboards or product variations.
Maximum Images- Maximum number of images to generate when sequential_image_generation='auto'. Range: 1-15. Total images (input + generated) cannot exceed 15. Perfect for creating image series or variations.