Bytedance/Seedream 4.5

seedream-4.5

Seedream 4.5 Text to ImageLLMs.txt

Generate ultra-realistic 4K images with advanced prompt understanding, multi-angle consistency, and professional-grade editing—ideal for commercial visuals, ads, and creative workflows.

API Playground API Documentation

API Endpoint URL

Base URL for all API requests to this endpoint.

https://modelslab.com/api/v7/images/text-to-image

API Authentication

Authentication requires a valid API key included in the request. Generate and manage your API keys from your developer dashboard. Include the key in the key parameter for all API requests.

Integration Examples

Production-ready code samples for API integration

{
  "prompt": "Ultra-realistic cinematic scene of a man standing on top of a flying airplane, strong wind motion, dramatic clouds, intense action moment. The man is holding and launching a missile from his hands, bright ignition flames, smoke trail, shockwave lighting on his face, detailed clothing movement, photoreal textures, 4K sharpness, dynamic perspective, heroic composition, powerful atmosphere, volumetric light, high-speed realism, dramatic sky, ultra-detailed cinematic action shot.",
  "aspect_ratio": "1:1",
  "model_id": "seedream-4.5",
  "key": "YOUR_API_KEY"
}

SDKs

Official SDKs

Production-ready SDKs and client libraries for all major programming languages

JavaScript

Python

PHP

API Parameters

Technical specifications for API request parameters.

Field Name	Parameter	Technical Description
Prompt	`prompt`	The text prompt for the type of image you want to generate
Aspect Ratio	`aspect_ratio`	Aspect ratio of the generated image
Model	`model_id`	Model ID