ByteDance ships Seedream as four separate models, and they are not a simple version ladder. Seedream 4.5 holds subjects and spatial logic together, Seedream 5.0 Lite reasons in steps and can search online before it draws, Seedream 5.0 Pro is the July 2026 flagship, and Seedream 5.0 Flash is the quick, low-cost tier of the 5.0 family. Load one prompt list, choose which Seedream renders it, and take the whole grid back at once.
One per line — each line is a separate prompt.
Drag & drop or click to upload — PNG / JPEG / WEBP / GIF, up to 10MB each.
Sending a brief to the wrong model costs you a whole batch. Here is what ByteDance, its Seed team and the published API listings actually claim for each Seedream, so the choice happens before you spend credits rather than after.
Released in December 2025 through ByteDance's Volcano Engine. Its three stated advantages are pixel-level element extraction, precise response to long compound instructions, and spatial reconstruction that obeys physical rules. That makes Seedream 4.5 the steady choice for multi-image sets, poster composition and logo work, where one subject has to survive across every row of the batch.
ByteDance Seed released it in February 2026 as a unified multimodal image generation model with deep thinking and online search. It works through a request in steps and can pull live information in before rendering, which suits visuals built on real facts. Seed also calls it a relatively small model whose structural stability, realism and aesthetics still have room to improve, while reporting an Elo score above Seedream 4.5.
Seed and Volcano Engine frame this Seedream around advanced reasoning and professional production. It raises text-image alignment, structural coherence and visual polish, renders realistic lighting, materials and skin texture, turns dense data or long text into infographics, posters and UI prototypes, and takes prompts natively in more than ten languages.
The newest member of the 5.0 family. Its API listings describe it as the fast, cost-efficient tier, built for high-volume production and edits that have to come back quickly. It composes several reference images into one frame, and the listings describe edits pinpointed with coordinates or boxes. When a list is long and the look is already pinned by references, Seedream 5.0 Flash is the one to run first.
The table below is generated from the same configuration the batch form reads, so the credits, resolution tiers, ratio count, reference-image ceiling and prompt length shown here are exactly what your run will use. Compare the four, then commit.
These values follow the platform configuration. If a model's pricing or limits change, this table changes with them.
A Seedream run has one decision that single-model pages do not: which of the four does the work. Everything after that is loading rows and confirming what it costs.
Start at the model chips rather than the prompt box. Take 4.5 when one subject or one layout has to hold across the set, 5.0 Flash when the list is long and you want the most affordable way through it, 5.0 Lite when you want the model to reason about a loose brief, 5.0 Pro when the output goes straight to a client. The rest of the form re-reads your choice, so the available resolution tiers shift with it.
Type one prompt per line or upload a spreadsheet and let BulkImagen map each row to an image. Every Seedream on this page accepts reference images, so you can pin a product shot, a face or a colour palette and have the batch inherit it instead of re-describing the look in each row.
The confirmation screen totals the spend before a single row starts. Watch the grid fill in, keep what works, and pull the selection down as one ZIP. A row that missed can be re-run on its own — or handed to a different Seedream without rebuilding the list.
ByteDance names advertising and marketing, e-commerce operations, film storyboarding, digital entertainment and education as the target scenarios. In practice those collapse into three kinds of run.
This is what Seedream 4.5 was tuned for: pixel-accurate element handling and poster composition held steady across a set. Feed it a spreadsheet of SKUs or campaign angles and the batch returns the same subject treated the same way. When the catalogue is large, Seedream 5.0 Flash carries the volume, with the product shots attached as references.
5.0 Lite reasons through a brief and can search before it draws; 5.0 Pro converts dense data and long text into infographics, posters and interface mockups. Between them, a batch of chart concepts, lesson visuals or launch one-pagers stops being an afternoon in a design tool.
5.0 Pro's realistic light, materials and skin texture cover shots you would otherwise have to stage, and 4.5's spatial reconstruction keeps a scene coherent from angle to angle. Run the shot list as rows and edit down from a full board instead of one frame at a time.
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Bring a prompt list, decide whether the job wants 4.5's consistency, 5.0 Flash's speed, 5.0 Lite's reasoning or 5.0 Pro's finish, and let one batch render the lot. Keep what works, download it as a ZIP, and send the rest back through a different Seedream.
