bytedance/seedream-4
Unified text-to-image generation and precise single-sentence editing at up to 4K resolution
Capabilities
Cost
Community model (estimated from hardware time)
Input Parameters
| Name | Type | Description | Default | Constraints |
|---|---|---|---|---|
prompt * | string | Text prompt for image generation | — | — |
aspect_ratio | string | Image aspect ratio. Only used when size is not 'custom'. Use 'match_input_image' to automatically match the input image's aspect ratio. | "match_input_image" | match_input_image 1:1 4:3 3:4 16:9 9:16 3:2 2:3 21:9 |
enhance_prompt | boolean | Enable prompt enhancement for higher quality results, this will take longer to generate. | true | — |
height | integer | Custom image height (only used when size='custom'). Range: 1024-4096 pixels. | 2048 | min: 1024, max: 4096 |
image_input | array | Input image(s) for image-to-image generation. List of 1-10 images for single or multi-reference generation. | | — |
max_images | integer | Maximum number of images to generate when sequential_image_generation='auto'. Range: 1-15. Total images (input + generated) cannot exceed 15. | 1 | min: 1, max: 15 |
sequential_image_generation | string | Group image generation mode. 'disabled' generates a single image. 'auto' lets the model decide whether to generate multiple related images (e.g., story scenes, character variations). | "disabled" | disabled auto |
size | string | Image resolution: 1K (1024px), 2K (2048px), 4K (4096px), or 'custom' for specific dimensions. | "2K" | 1K 2K 4K custom |
width | integer | Custom image width (only used when size='custom'). Range: 1024-4096 pixels. | 2048 | min: 1024, max: 4096 |
prompt required string Text prompt for image generation
aspect_ratio string Image aspect ratio. Only used when size is not 'custom'. Use 'match_input_image' to automatically match the input image's aspect ratio.
"match_input_image" enhance_prompt boolean Enable prompt enhancement for higher quality results, this will take longer to generate.
true height integer Custom image height (only used when size='custom'). Range: 1024-4096 pixels.
2048 min: 1024, max: 4096 image_input array Input image(s) for image-to-image generation. List of 1-10 images for single or multi-reference generation.
max_images integer Maximum number of images to generate when sequential_image_generation='auto'. Range: 1-15. Total images (input + generated) cannot exceed 15.
1 min: 1, max: 15 sequential_image_generation string Group image generation mode. 'disabled' generates a single image. 'auto' lets the model decide whether to generate multiple related images (e.g., story scenes, character variations).
"disabled" size string Image resolution: 1K (1024px), 2K (2048px), 4K (4096px), or 'custom' for specific dimensions.
"2K" width integer Custom image width (only used when size='custom'). Range: 1024-4096 pixels.
2048 min: 1024, max: 4096 cf7d43199143 Updated: 2/26/2026 27.5M runs
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