A creative model for high-resolution image sets and reference image editing
Seedream 5.0 Lite is an image generation and editing model in ByteDance's Seedream series, suitable for progressing from text-based ideas and reference images to a series of visual assets. doubao-seedream-5-0-lite-260128 supports high-resolution output, related image sets, streaming delivery, and web search, focusing on continuous creative needs rather than transparent-background and layer-separation tasks.
Input parameters and result formats vary by service. Use the public API for this model and follow its guide for generation, task retrieval and editing operations.
Specifications and API features
Creation mode
Text-to-image, single-image or multi-image reference editing
Output size
2K / 3K / 4K; supports explicit width and height that meet size requirements
Reference image input
URL or Base64; the API image array supports up to 14 images
Related image sets
auto / disabled; max_images can be set to 1–15
Image delivery
JPEG / PNG; URL / b64_json
Creation controls
web_search; standard prompt optimization; watermark toggle
Result retrieval
Synchronous, NDJSON streaming, asynchronous query, or callback
The values and options above describe this platform's supported invocation range for this model, and do not represent the model's native capacity or the actual number of outputs per task.
Core capabilities
Expand one idea into a series of images
Lite supports related image sets, generating multiple content-related images around the same theme. Prompts can specify shared characters, visual style, and variations for each image at the same time, then enable automatic image sets. Compared with generating each image independently, this approach is better suited for organizing storyboards, product series presentations, and coordinated content illustrations.
Use reference images to advance visual edits
In addition to describing an image directly, you can input one or more reference images and use text to explain what should be preserved and modified. The workflow can be used for background adjustments, style transformations, or scene redesign. Clearly specifying the subject, composition, and scope of changes helps each round of editing progress toward a defined goal.
Balance high resolution with image-by-image delivery
2K, 3K, and 4K presets make it easy to select output tiers for different assets, while explicit dimensions are used to specify the canvas format. Series tasks can receive per-image success or failure events through streaming, then obtain the completed results; the web search tool can also be enabled per task, providing an option for creation that requires retrieved information.
Applicable Scenarios
E-commerce Product Series Assets
Provide product images and describe the target scene, color tone, shooting angle, and series variations to generate multiple presentation directions. You can first use a lower setting to select compositions, then generate higher-resolution assets for the chosen options. The deliverables are suitable for product scene proposals, campaign illustrations, or advertising visual drafts.
Storyboards and Sequential Illustrations
Break the story into clear visual segments, unify character appearance, environments, and art style in the prompts, and describe actions and camera changes separately. Enable related image groups to obtain a series of images for layout, review, and subsequent revisions. Reference images can help convey character settings, but continuity still needs to be checked frame by frame.
Automated Image Generation for Content Systems
Combine article topics, visual requirements, and output dimensions into generation tasks, return image links or Base64 data, and integrate them into the content production workflow. Use streaming when images need to be displayed one by one; use asynchronous queries or callbacks for background processing, and finally archive images by task identifier to avoid making the frontend wait for complete results.
How to Choose This Model
Choose Lite for Image Groups, Pro for Layer Processing
If the task requires related image groups, streaming delivery, or web search, 5.0 Lite is better suited to these workflows. If the core requirement is transparent background control or separating independently editable layers, choose 5.0 Pro. The two are not simply differentiated by resolution: Lite provides 2K/3K/4K, while Pro uses 1K/1.5K/2K for standard generation.
Migrating from 4.5: Review the New Options
Seedream 4.5 also supports sequential image generation and streaming output, so existing workflows of this type do not need to switch solely because of image group requirements. Lite's specific value lies in adding a 3K option, web search, and JPEG/PNG file format control. It is recommended to compare actual assets using the same prompts and reference images before deciding whether to migrate.
Get Started
Plan Text-and-Image Content and Reference Images
Clearly specify the purpose of each image, subject retention requirements, and target copy; use image to submit an image URL or Base64 for editing, and avoid uploading assets without revision instructions.
Set Dimensions and Image Groups for This Version
Specify model=doubao-seedream-5-0-lite-260128, prompt, and size=2K to /seedream/images. To generate related image groups, set sequential_image_generation=auto and use max_images to limit the maximum; choose streaming and asynchronous/callback modes separately.
Review and Save Each Image
Read the images actually returned rather than inferring the number from the request limit; synchronous, streaming, and asynchronous modes each use their own response formats, while asynchronous tasks are linked through /seedream/tasks.
Trial suggestion: City guide series images
Input and objective
Create three city guide images in the same style based on the provided attraction information: one introducing architecture, one introducing a walking route, and one introducing local cuisine; use only verified short labels for all text.
Acceptance and next steps
Provide accurate information first; if web_search is explicitly used, still verify attraction names and geographic relationships, then check the text and actual number of each image.
Usage limitations
Lite does not accept the layer_decomposition or background parameters. Choosing PNG only determines the file format; it does not mean you get a transparent background, nor will it return editable layers. When these design assets are needed, use a model that supports the relevant features instead.
Custom width and height cannot merely satisfy the “width x height” string format; they must also comply with the model's pixel and aspect-ratio requirements. The image-group quantity setting is a task-control option, not a guarantee that the specified number will be generated. When receiving results, check the actual image list and error information.
Streaming mode cannot be enabled together with asynchronous processing or callbacks; choose one workflow based on the delivery method. Linked image groups also do not guarantee absolute consistency in character details; for product logos, continuous shots, or informational illustrations, inspect each image before using it for formal delivery.
Frequently Asked Questions
How do I call this fixed version?
Send a POST request to /seedream/images, use the full model value doubao-seedream-5-0-lite-260128, and provide a prompt. For editing tasks, also include image. Do not use abbreviations such as doubao-seedream-5.0-lite in place of the full model name.
How should reference images be submitted, and how do I describe multiple images?
image can use an image URL or Base64; submit multiple images as an array. The prompt should clearly specify the role of each reference image, such as the subject's appearance, composition, or style, and explain which parts need to be preserved and modified. This makes it easier to organize the task than simply uploading images without stating the editing goal.
How do I generate a set of related images?
Set sequential_image_generation to auto, and specify the series theme and variations for each image in the prompt; use max_images to control the maximum number. If you only want normal single-image output, use disabled. Final delivery is based on the actual returned image results.
How do I choose between 4K and custom aspect ratios?
When you need a preset resolution, use 2K, 3K, or 4K, and describe requirements such as landscape or portrait orientation in the prompt. When you need specific width and height, use a pixel-dimension string, but it must meet the model's size range. Do not assume that 4K means any width-height combination can be generated.
What does streaming output return, and how are background tasks handled?
When stream is enabled, use NDJSON to receive per-image success or failure events, and wait for the final completion event. For background tasks, use async to obtain task_id, then query /seedream/tasks, or use a callback to receive results; these methods cannot be used together with streaming.