🎉 New Year Sale: Get 20% OFF on all plans — Use code NEWYEAR2026.

Upgrade now
Seedance 1.5 Pro thumbnail

Bytedance/Seedance 1.5 Pro

seedance-1-5-pro
Seedance 1.5 Pro Text to VideoLLMs.txt
Endpoint:
Generate cinematic **videos** with native **audio-visual sync**, multilingual lip-sync, skeletal tracking & 4K upscaling using dual-branch Diffusion Transformer; up to 25s at 1080p.[1][2][3]
API PlaygroundAPI Documentation

API Endpoint URL

Base URL for all API requests to this endpoint.

https://modelslab.com/api/v7/video-fusion/text-to-video

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": "A cinematic skincare commercial featuring a stunning female model with flawless glowing skin and wet, brushed-back hair. Begin with close-up shots of fresh water splashing in slow motion, soft daylight reflections, and droplets gliding over smooth skin. Transition to the model gently touching her face, smiling confidently, holding a premium facewash bottle beside her cheek. Show her applying the facewash with delicate hand movements, water running over her skin, highlighting hydration and purity. Use soft natural lighting, minimal clean background, and elegant product focus. Include aesthetic shots of the facewash bottle rotating in light, product texture visuals, and final hero shot of the model holding the product with a gentle smile. Mood: Fresh, luxurious, pure, premium skincare. Ultra-realistic, beauty commercial style, 4K, smooth transitions, slow motion.",
"model_id": "seedance-1-5-pro",
"aspect_ratio": "16:9",
"key": "YOUR_API_KEY"
}

SDKs

Official SDKs

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

API Parameters

Technical specifications for API request parameters.

Field NameParameterTechnical Description
PromptpromptEnter prompt for image to videoaa
Model idmodel_idModel
Ratioaspect_ratioAspect ratio of the generated image