Seedance v1.5 Pro Image-to-Video Fast
Native audio-visual joint generation model by ByteDance. Supports unified multimodal generation with precise audio-visual sync, cinematic camera control, and enhanced narrative coherence.
What it does
Seedance v1.5 Pro Image-to-Video Fast, in practice.
Seedance 1.5 PRO is a foundational model engineered specifically for native joint audio-visual generation, developed by the ByteDance Seed team. It represents a significant leap forward in transforming video generation into a practical, utility-driven tool. By integrating a dual-branch Diffusion Transformer architecture, the model achieves exceptional audio-visual synchronization and superior generation quality, establishing it as a robust engine for professional-grade content creation.
- Unified Multimodal Generation : Leverages a unified framework based on the MMDiT architecture to facilitate deep cross-modal interaction, ensuring precise temporal synchronization and semantic consistency between visual and auditory streams.
- Precise Audio-Visual Sync : Achieves high-fidelity alignment of lip movements, intonation, and performance rhythm. It natively supports multiple languages and regional dialects, accurately capturing unique vocal prosody and emotional tonalities.
- Cinematic Camera Control : Possesses autonomous camera scheduling capabilities, enabling the execution of complex movements such as continuous long takes and dolly zooms ("Hitchcock zoom"), significantly enhancing the dynamic tension of the video.
- Enhanced Narrative Coherence : Through strengthened semantic understanding, the model significantly improves the overall narrative coordination of audio-visual segments, providing strong support for professional-grade content creation.
- Efficient Inference Acceleration : An optimized multi-stage distillation framework, combined with quantization and parallelization, boosts the end-to-end inference speed by over 10x while preserving high performance.
- Film and Short Drama Production: Creating high-quality, emotionally resonant scenes with precise character performances.
Product photo workspace
This page is a model reference. The workspace supports white backgrounds, scene changes, packaging text edits and model try-on using Qwen Image Edit.
Parameters
What you can set.
| Parameter | What it does | Options |
|---|---|---|
aspect_ratio | The aspect ratio of the generated media. | 21:9 16:9 4:3 1:1 3:4 9:16 |
camera_fixed | Whether to fix the camera position. | default |
duration | The duration of the generated media in seconds. | default 5 |
generate_audio | Whether to generate audio. | default True |
image | The positive prompt for the generation. | |
last_image | The positive prompt for the generation. | |
prompt | The positive prompt for the generation. | |
resolution | Video resolution. | 720p |
seed | The random seed to use for the generation. -1 means a random seed will be used. | default -1 |
Sample prompt
The prompt behind the sample.
Use the provided image as the first frame. On a quiet residential street in a summer afternoon, a young girl in high-quality Japanese anime style slowly walks forward. Her steps are natural and light, with her arms gently swinging in rhythm with her walk. Her body movement remains stable and well-balanced. As she walks, her expression gradually softens into a gentle, warm smile. The corners of her mouth lift slightly, and her eyes look calm and bright. A soft breeze moves her short hair and headband, with individual strands subtly flowing. Her clothes show slight natural motion from the wind.
camera_fixed: duration: 5generate_audio: Trueresolution: 720pseed: -1aspect_ratio: 16:9FAQ
Short answers.
How much does Seedance v1.5 Pro Image-to-Video Fast cost?
List price starts at $0.027 per second of video at the base resolution; higher resolutions and longer durations cost more. An 8-second clip at the base tier is about $0.22. Per-use pricing, no subscription. Model prices are reference prices. The prompt workspace is free during the period shown on the homepage; no automatic charges.
What content policy applies to Seedance v1.5 Pro Image-to-Video Fast?
ByteDance's standard content policy, plus this site's commercial-use rules: product, catalog and marketing work. Uploads are processed for your request only and are not used for training.
What does Seedance v1.5 Pro Image-to-Video Fast take as input?
It is a image-to-video model. Native audio-visual joint generation model by ByteDance. Supports unified multimodal generation with precise audio-visual sync, cinematic camera control, and enhanced narrative coherence.
How do I use Seedance v1.5 Pro Image-to-Video Fast?
Supply the first frame and describe only the motion. The still is the contract: identity, wardrobe, light and framing stay, so keep the prompt about camera and movement, not about changing the subject. Aspect ratio should match the still. Register or sign in to edit product photos with Qwen Image Edit. Other models on this page are catalog references.
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