Seedance 1.5 Pro AI Video Generator
AI video with native audio — direct every frame, sync every sound
What is Seedance 1.5 Pro?
Seedance 1.5 Pro is ByteDance's breakthrough audio-visual AI video model, the first to generate synchronized video and audio in a single pass. Built on a 4.5-billion-parameter Dual-Branch Diffusion Transformer, it eliminates the disconnect between sight and sound that plagues traditional AI video tools. Dialogue matches lip movements at phoneme-level precision, sound effects arrive exactly when actions occur, and background music responds to the semantic content of your scene — all without post-production.
The model supports multilingual dialogue across 8+ languages including English, Mandarin, Japanese, Korean, Spanish, and Indonesian, with multi-person conversations maintaining distinct vocal identities. With resolution up to 1080p and cinematic camera controls — dolly zooms, tracking shots, crane movements — Seedance 1.5 Pro bridges the gap between AI experimentation and professional video production.
Best for
Capabilities
Open the matching GlowVideo workflow for each supported input mode.
Text to Video
byteplus/seedance-1-5-pro/text-to-video
5-49 credits per generation
Image to Video
byteplus/seedance-1-5-pro/image-to-video
5-49 credits per generation
How to use Seedance 1.5 Pro
Choose the model
Open the matching GlowVideo tool and select the model from the model picker.
Write a concrete prompt
Describe the subject, action, camera movement, visual style, aspect ratio, and any timing cues.
Set format and duration
Pick the output ratio, clip length, quality tier, and optional image reference if the workflow supports it.
Generate and iterate
Create the first version, compare outputs, then refine the prompt or switch models for a different look.
Prompt examples for Seedance 1.5 Pro
Cinematic product shot
Product adsA premium wireless headphone rotating on a dark reflective table, slow dolly-in camera, warm rim light, cinematic product commercial, 16:9.
Short-form travel clip
TikTok and ShortsA handheld morning walk through a narrow Tokyo alley after rain, neon signs reflected on wet pavement, natural camera shake, realistic people in the background.
Animated character moment
StoryboardsA curious robot child looks up at a glowing meteor shower in a quiet desert, expressive face, soft moonlight, gentle camera tilt upward.
Social campaign hook
Performance creativeA close-up of a founder opening a laptop in a cozy studio, fast punch-in camera move, captions space at the top, confident startup launch mood.
Seedance 1.5 Pro vs other AI video models
Seedance 1.5 Pro is the better fit when synced sound, dialogue, and cinematic camera language matter more than just raw speed.
Key features
Native Audio-Visual Generation
Generate synchronized video and audio in one pass. Ambient sounds, sound effects, dialogue, and music are all created with millisecond-level precision.
Multilingual Lip-Sync Dialogue
Produce natural dialogue in 8+ languages with phoneme-level lip-sync accuracy. Supports multi-person conversations with distinct vocal identities.
Film-Grade Cinematography
Command professional camera movements — dolly zoom, tracking shot, crane, whip pan, Hitchcock zoom — rendered with cinematic fluidity.
Draft Mode for Rapid Iteration
Quick 480p preview generation for fast creative iteration before committing to a full-quality 1080p render.
Seedance 1.5 Pro FAQ
What is Seedance 1.5 Pro best used for?
Seedance 1.5 Pro is best for generating AI video clips from text prompts or reference images, especially when you need fast concept videos, social content, ads, product shots, or storyboard-style footage.
Can I use Seedance 1.5 Pro for image to video?
If the model supports image-to-video in GlowVideo, you can upload a reference image and guide the motion with a prompt. The available modes are listed in the capabilities section on this page.
Is Seedance 1.5 Pro free to try?
GlowVideo uses a credit-based workflow. New users can start from the free tier when available, then spend credits based on model, duration, resolution, and output settings.
How do I write better prompts for Seedance 1.5 Pro?
Use concrete scene details: subject, action, camera motion, lighting, aspect ratio, style, and constraints. Avoid vague prompts such as 'make it cinematic' without explaining what should happen on screen.
Source docs
Start creating with Seedance 1.5 Pro
AI video with native audio — direct every frame, sync every sound