Seedream 5.5. Generate and edit from references.
ByteDance Seed's image model makes a picture from a prompt, or edits and combines existing images. Attach up to 10 references and pick one of 17 aspect ratios.
- Text and image input
- 2K output
- 17 aspect ratios plus auto
- Up to 10 reference images per node
Seedream 5.5 is ByteDance Seed's model for generating and editing stills. Write a prompt to start from nothing, or attach images and describe what should change: a product moved to a new set, a style carried over, several pictures combined into one frame.
On Treza it sits in the Image Generation node's model picker. Pick one of 17 aspect ratios, from 9:21 tall strips to 21:9 widescreen, or leave it on auto. In our tests an image came back in 21 to 23 seconds, and a finished still wires straight into the rest of the pipeline, which publishes as one API.
Up to 10 references
Attach products, people, settings and style frames to one node, and Seedream 5.5 combines them into a single image.
Generate and edit in one model
Start from a prompt, or attach a photo and describe the change. The same node does both.
17 aspect ratios
From 9:21 and 9:16 tall frames to 16:9 and 21:9 widescreen, with auto when the prompt should decide.
One flat price
Every image renders at 2K for the same price, so a draft and a keeper cost the same.
What to make with Seedream 5.5
Prompts to try, and what to expect back. Each runs on an Image Generation node with Seedream 5.5 picked in the model menu.
“A ceramic cup of coffee on a sunlit wooden cafe table, steam rising, shallow depth of field”
A warm, natural-light product still.
“The same folded shirt (attached) on a white marble counter in a bright studio”
The shirt, its weave and collar kept, on a new set.
“Put this sneaker (attached) on this street (attached), in the style of this frame (attached)”
One composition from three references.
“A 21:9 banner of a mountain lake at dawn for a website header”
A wide strip sized for the header.
“A 9:16 poster of a jazz night in a small club, moody blue light”
A vertical frame ready for a story or a short.
“The same jar (attached) in four seasonal settings, one per image”
A set of matching product shots for a campaign.
Seedream 5.5 is one node on a canvas
Chain it with language, image, and video models, then publish the whole pipeline as an API. See how a full AI video pipeline fits together.
- Step 01
Draft the brief
A language model node expands a one-line idea into a detailed, on-brand prompt before it ever reaches the model.
- Step 02
Generate with Seedream 5.5
Run variants in parallel, compare against other models on the same prompt, and keep every result in run history.
- Step 03
Publish it as an API
The pipeline becomes a versioned endpoint. Your product calls it with the typed /invoke API or any OpenAI SDK.
Seedream 5.5 as an API, priced per image
The Seedream 5.5 API
Build a pipeline with Seedream 5.5 on a node and publish it. It becomes a versioned HTTP endpoint: the typed /invoke route enqueues a run and returns a run id to poll, and an OpenAI-compatible route works with SDKs you already use. Agents connect over MCP the same way. Your prompt engineering ships inside the pipeline, so every caller gets your quality, and swapping the model later does not change the API your product calls.
Seedream 5.5 pricing
Prepaid credits, no subscription. Each image is charged at Seedream 5.5's own rate from your balance, shown before you run, and a failed generation costs nothing. Credit packs start at $5 and never expire, which suits spiky production schedules. Run history records the cost of every generation, per node, so spend is auditable rather than a surprise.
Seedream 5.5, answered
What is Seedream 5.5?
ByteDance Seed's image generation and editing model. It makes images from text prompts, and edits or combines images from reference images (up to 10 per node on Treza), in 17 aspect ratios.
What does Seedream 5.5 cost?
In our tests each image billed 3.5 cents, and each reference image added 0.8 cents. Treza quotes every run before it starts, plus its credit markup, and a failed generation costs nothing.
How is it different from Seedream 5.0?
Both generate and edit from references. Seedream 5.5 takes up to 10 references per node, where Seedream 5.0 takes up to 14. Run one prompt through both on two nodes and let the output decide.
Can I use Seedream 5.5 in chat?
Yes. Ask for Seedream 5.5 by name in Treza chat, or pick it in the Image Generation node on the canvas.
How much does Seedream 5.5 cost on Treza?
Treza uses prepaid credits with no subscription. Each image is charged at Seedream 5.5's rate from your balance, and only successful generations are charged. Credit packs start at $5 and never expire.
Can I call Seedream 5.5 through an API?
Yes. Build a pipeline that uses Seedream 5.5 and publish it as a versioned HTTP endpoint. Call the typed /invoke API from your product, or point any OpenAI SDK at the OpenAI-compatible endpoint. If a better model ships later, swap it on the node without changing the API your product calls.
Your first video is one prompt away.
Generate your first video, image, or draft today. Prepaid credits, no subscription.