Seedream 5.5 API for image generation and editing
ByteDance’s Seedream 5.5 generates images from text or reference images, refines them across multiple edits and exports transparent assets. Here’s what the model can do and how to check access with a LAYSO API key.
What can Seedream 5.5 do?
Start with a prompt or reference images, then refine details such as lighting or color while preserving areas you leave untouched. Native RGBA output makes it possible to generate assets with transparency, such as a product cutout or an icon with soft edges.
Where it fits in a design workflow
For a product campaign, start with one hero image, then adjust the background or lighting while keeping the product consistent. ByteDance also documents layer decomposition and text recognition for supported fonts, useful when a designer wants to work on elements of an existing image separately.
Check access with your LAYSO API key
ByteDance’s model ID is doubao-seedream-5-5-261028. Run this read-only request to check the models your LAYSO key can use, then look for the model in the response before integrating.
curl -fsS https://api.layso.ai/v1/models \
-H "Authorization: Bearer $LAYSO_API_KEY"Start using the LAYSO API
LAYSO provides a unified API for AI model access. Create an API key, choose an available model and route, and connect your application. Check live pricing before sending requests and review the platform credits used in your usage logs.
https://api.layso.ai/v1Frequently asked questions
Can Seedream 5.5 output a transparent PNG?
Yes. ByteDance documents native RGBA output for image generation. Check whether your API route exposes the transparent-background option before relying on it.
Can Seedream 5.5 edit an existing image?
Yes. It supports reference images and targeted edits across multiple rounds. Keep the original and check important details after each edit.
Where can I check LAYSO availability and pricing?
Use the model list for your API key to confirm access, and check the LAYSO model pricing page for current rates when the model is listed.
Sources and further reading
- Seedream 5.5 · ByteDance Seed
- Seedream 5.5 launch · ByteDance Seed
- Image generation API · Volcano Engine Ark