Seedream 4

seedream-4

byByteDance|Created Oct 30, 2025

Seedream 4.0 is ByteDance’s advanced text-to-image and image editing model, designed for high-speed, high-resolution image generation and robust contextual understanding. It unifies generation and editing in a single architecture, supports complex visual tasks with natural-language instructions, and excels at multi-reference batches and diverse style transfers. Seedream 4.0 stands out for its ability to handle both content creation and modification, offering creative professionals and enterprises an all-in-one, efficient solution for imaginative and knowledge-driven visual tasks.

Code Example

Example code for using this model through our API with Python (OpenAI SDK) or cURL. Replace placeholders with your API key and model ID.

Basic request example. Ensure API key permissions. For more details, see our documentation.

from openai import OpenAI

client = OpenAI(base_url="https://api.naga.ac/v1", api_key="YOUR_API_KEY")

resp = client.images.generate(
    model="seedream-4",
    prompt="A white siamese cat",
    size="1024x1024",
    n=1,
    response_format="url",  # or "b64_json"
)
print(resp.data)  # array of images with url or b64_json