Seedance v1.5 Pro Text-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 Text-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 |
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.
A cinematic, ultra-realistic underwater scene of a majestic whale swimming gracefully through the deep blue ocean. Sunlight rays penetrate the water from above, creating soft volumetric light beams. The whale’s massive body moves slowly and smoothly, with gentle tail motions and flowing fins. Tiny air bubbles and floating particles drift through the water. Surrounding marine life appears subtly in the distance, enhancing the sense of scale. Natural ocean colors, realistic water caustics, calm and peaceful atmosphere. Smooth camera tracking alongside the whale, shallow depth of field, IMAX-qual
aspect_ratio: 16:9camera_fixed: duration: 8generate_audio: Trueresolution: 720pseed: -1FAQ
Short answers.
How much does Seedance v1.5 Pro Text-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 Text-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 Text-to-Video Fast take as input?
It is a text-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 Text-to-Video Fast?
Write the shot the way you would brief a DP — subject, place, light, lens, one motion, ratio — then run it. Expect a clip with native audio in the seconds range. Iterate one variable per pass; rewrites of the whole prompt are what make motion drift. Register or sign in to edit product photos with Qwen Image Edit. Other models on this page are catalog references.
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