ByteDance's next-generation audio-visual generation model with film-grade cinematography, native audio generation, and powerful storytelling. Generate cinema-quality videos with synchronized sound in a single pass.
Three major breakthroughs in audio-visual synergy, visual impact, and narrative coherence.
Generate diverse voices and spatial sound effects that coordinate with visuals for smoother storytelling. Support a wide range of languages and dialects with great lip-sync and motion alignment.
Capable of complex camera movement, from close-ups with subtle facial expressions and emotions, to full-shots with cinematic level of details, composition, and atmosphere.
Based on prompt intent, can auto-fill the narratives and keep the content cohesive across various characters' emotions, expressions and actions, suitable for short dramas, advertising, and social media.
Native support for multiple languages including Chinese, English, Japanese, Korean, Spanish, and Indonesian. Also supports regional dialects like Sichuanese and Cantonese with accurate vocal prosody.
Seedance 1.5 Pro is ByteDance's next-generation audio-visual generation model, developed by the ByteDance Seed Team. This model features joint audio-visual generation capabilities, capable of executing a range of tasks including synthesizing audio-video content from text prompts and generating it through image-driven processes. This evolves Seedance models beyond the purely visual, allowing them to seamlessly integrate sound into video generation.
While Seedance 1.0 focused on improving the "performance floor" by enhancing motion generation stability, Seedance 1.5 Pro now aims higher. Beyond its new audio-synchronized generation capability, it also strives to elevate the "performance ceiling" of visual impact and motion effects. By adopting more audacious technical approaches, Seedance 1.5 Pro has achieved breakthroughs in audio-visual synergy, visual impact, and narrative coherence.
The model uses a dual-branch diffusion transformer architecture that renders video and audio in the same latent space, producing tight lip-sync and natural foley without the disconnect between "visuals and separate audio." This ensures high audio-visual consistency during generation, significantly improving the alignment accuracy of lip movements, intonation, and performance rhythm.
High audio-visual consistency with significantly improved alignment accuracy of lip movements, intonation, and performance rhythm. Dual-branch diffusion transformer renders in the same latent space, delivering tight lip-sync and natural foley effects.
Autonomous cinematography capabilities enabling complex movements such as continuous long takes and dolly zooms (Hitchcock zoom). Achieves cinematic scene transitions and professional color grading — from close-ups to full-shots with film-grade quality.
Precise analysis of narrative contexts through strengthened semantic understanding. Deciphers nuanced and complex human emotions and translates them into expressive artistic representations, significantly improving overall narrative coordination.
Native support for Chinese, English, Japanese, Korean, Spanish, and Indonesian. Also supports regional Chinese dialects like Sichuanese and Cantonese with accurate vocal prosody and emotional tension, with facial expressions aligned to dialect-specific prosody.
Smoothly renders high-dynamic, high-impact motion scenes. Substantially enhances the dynamic tension of videos with fast lateral cuts, slow-motion close-ups, and authentic recreation of speed and power — perfect for extreme sports and action sequences.
Demonstrates robust style consistency in image-to-video tasks. Effectively maintains stable character features during multi-shot transitions and complex movements, improving coherence from raw footage to final production with seed-based reproducibility.
| Resolution | 480p, 720p |
|---|---|
| Duration | 5s, 10s |
| Frame Rate | 24 fps |
| Aspect Ratio | Adaptive |
| Languages | 6 Languages |
|---|---|
| Dialects | Multiple |
| Lip-Sync | Precise |
| Audio Types | 5 Types |
| Text-to-Video | Supported |
|---|---|
| Image-to-Video | Supported |
| Architecture | Dual-Branch |
| Synchronization | Simultaneous |
| Languages | Chinese, English, Japanese, Korean, Spanish, Indonesian |
|---|---|
| Dialects | Sichuanese, Cantonese, and more |
| Voice/Dialogue | Character narration, multi-person conversations |
| Ambient Sounds | Wind, ocean waves, street noise, traffic |
| Sound Effects | Footsteps, glass breaking, 8-bit game sounds |
Create cinema-quality scenes with film-grade cinematography, continuous narrative sequences, and emotional character portrayals. Professional color grading and composition for broadcast-ready content.
Multi-language and dialect support for comedy and stylized performances. Coherent narrative logic with multi-shot transitions. Perfect for entertainment content and social media storytelling.
Product promotion videos with commercial-style cinematography. Professional color grading and brand marketing content. Ideal for e-commerce, live-streaming, and product demonstrations.
AI exploration of traditional art forms with accurate vocal prosody and emotional tension. Synchronized action and music for cultural heritage content. Captures unique characteristics of traditional performance.
Pixel art and 3D game CG with immersive audio-visual interaction. Precise sound effect generation synchronized with gameplay. 8-bit sounds, footsteps, and ambient audio for enhanced gaming experience.
Anime-style scenes with multi-shot narrative sequences. Romantic and coherent narrative atmosphere with Japanese dialogue and emotional expression. Perfect for anime content creators and storytellers.
Currently supports up to 720p resolution. 1080p is not yet supported on most platforms. For higher resolution needs, consider upscaling post-processing or wait for future model updates.
Single generation supports 5 and 10 second durations (some platforms support 4-12 seconds). Longer videos require generating multiple segments and stitching them together in post-production.
Primarily supports 6 languages (Chinese, English, Japanese, Korean, Spanish, Indonesian). Other languages may have limited effectiveness or require translation. Best results achieved with supported languages.
Certain specific artistic styles may require multiple iterations to achieve ideal results. Detailed prompts with clear style descriptions help improve first-generation quality and reduce iteration needs.
Experience ByteDance's next-generation audio-visual generation model. Sound and vision, all in one take. Create cinema-quality videos with synchronized sound.
Try Seedance 1.5 Pro now