ByteDance Seed's joint audio-video model — native audio, film-grade cinematography, and lip-sync from a single text prompt.
Discover unmatched audio-video synchronization — see demos below
Watch what Seedance 1.5 Pro can create. From expressive character performances to sweeping cinematic sequences, these Seedance 1.5 Pro demos showcase the remarkable audio-video generation quality that defines a new era of AI content creation.
Seedance 1.5 Pro generates rich visual narratives accompanied by spatially accurate sound effects, delivering a truly immersive viewing experience that feels professionally produced.
With Seedance 1.5 Pro, creators can produce multi-character dialogue scenes where each character's lip movements are precisely aligned with the generated speech audio, achieving natural conversational dynamics.
Seedance 1.5 Pro handles complex camera transitions including tracking shots, dolly zooms, and aerial sweeps effortlessly while maintaining temporal coherence throughout every frame of the output.
One of the standout Seedance 1.5 Pro capabilities is the native voice generation system that produces natural-sounding dialogue in multiple languages and dialects with impressive emotional range.
Seedance 1.5 Pro creates spatially aware sound effects that respond to on-screen action — footsteps echo in hallways, rain patters on windows, and engines roar as vehicles approach and pass by.
Seedance 1.5 Pro excels at producing emotionally compelling story sequences where character expressions, body language, and ambient audio work together to create powerful narrative moments.
Seedance 1.5 Pro represents a fundamental shift in how AI generates video content. Unlike conventional models that produce silent video clips, this platform is built from the ground up as a joint audio-video generation model. Every video created comes with natively generated audio — including dialogue, sound effects, and ambient soundscapes — all perfectly synchronized with the visual content. The result is production-ready video that feels natural and immersive, eliminating the need for separate audio post-production workflows that traditionally consume hours of editing time.
Seedance 1.5 Pro uses a unified model architecture that simultaneously generates both audio and video streams. This joint approach ensures that the generated audio is inherently tied to the visual content, producing synchronized results that traditional pipeline approaches simply cannot match. Every sound in the output is contextually aware of what is happening on screen, creating a seamless viewing experience that rivals professional studio production.
The voice synthesis engine in Seedance 1.5 Pro supports generation across multiple languages and regional dialects with accurate lip-sync alignment. Whether you need dialogue in English, Mandarin, Japanese, Korean, or other supported languages, the model delivers natural-sounding speech with proper mouth movements. This makes the platform ideal for creating localized content that resonates with global audiences across different markets and cultural contexts.
Seedance 1.5 Pro incorporates a sophisticated cinematography engine that understands professional camera techniques. From intimate close-ups capturing subtle facial expressions to sweeping wide-angle shots with cinematic depth of field, the model generates videos with the visual sophistication expected in professional film production. It handles complex camera movements including tracking shots, crane movements, and dolly zooms with remarkable precision and smooth temporal consistency.
Beyond individual clips, Seedance 1.5 Pro understands storytelling at a deep level. The model can auto-fill narrative gaps and maintain content cohesion across multi-shot sequences, keeping character emotions consistent, tracking visual continuity, and ensuring that audio elements support the narrative arc throughout. This capability makes the platform particularly powerful for creating short dramas, advertisements, and social media content that tells a complete and emotionally engaging story.
Seedance 1.5 Pro is built on three foundational capabilities that set it apart from every other AI video generation model on the market. Each pillar represents years of research and engineering by the ByteDance Seed team, refined through extensive training on diverse multimedia datasets. Together, these capabilities make this the most complete creative AI tool available for professional content production.
Seedance 1.5 Pro packs an impressive array of capabilities into a single unified architecture. Every feature is designed to work seamlessly together, giving creators unprecedented control over their AI-generated audio-video content.
Seedance 1.5 Pro converts text prompts into complete audio-video content. Simply describe your scene, and the model generates high-quality video with synchronized sound, dialogue, and ambient audio — all from a single text input with no additional post-processing required.
The Seedance 1.5 Pro lip-sync technology ensures that generated character speech is perfectly matched with natural mouth movements across multiple languages, achieving remarkable accuracy and naturalness that makes AI-generated dialogue virtually indistinguishable from real footage.
Seedance 1.5 Pro creates three-dimensional soundscapes where audio elements are positioned accurately in space. Sounds move with objects, echo in enclosed environments, and attenuate with distance — all automatically generated based on the visual context of each scene.
Seedance 1.5 Pro offers precise camera movement control including tracking shots, dolly zooms, crane shots, and handheld effects. Creators can specify desired camera behavior in their prompts, and the engine executes them with professional-level precision and temporal consistency.
Across multi-shot sequences, Seedance 1.5 Pro maintains consistent character emotions and expressions. The model tracks emotional arcs and ensures that character behavior remains coherent throughout the entire generated video, preserving dramatic integrity.
Seedance 1.5 Pro supports content generation in over ten languages and dialects. From English and Mandarin to Japanese, Korean, and beyond, Seedance 1.5 Pro produces linguistically accurate content with natural pronunciation, appropriate intonation, and culturally aware expression patterns.
Beyond dialogue and SFX, Seedance 1.5 Pro generates contextually appropriate ambient audio — rain, wind, city noise, forest sounds, ocean waves, and more. These ambient layers add depth and realism to every generated scene, creating truly immersive environments.
Seedance 1.5 Pro can intelligently fill narrative gaps between key scenes. Provide the beginning and end points of your story, and Seedance 1.5 Pro generates the transitional content needed to create a cohesive, emotionally satisfying narrative arc with natural pacing and progression.
Under the hood, Seedance 1.5 Pro is powered by state-of-the-art neural network architecture. Here are the key technical details that position Seedance 1.5 Pro as a leader in the AI video generation landscape.
Explore the creative possibilities unlocked by Seedance 1.5 Pro. Each video in this gallery was generated entirely by Seedance 1.5 Pro, demonstrating versatility across different genres, artistic styles, and creative applications.
Seedance 1.5 Pro captures intimate emotional moments with professional-quality close-up shots, featuring nuanced facial expressions and perfectly matched audio that brings characters to life.
This Seedance 1.5 Pro demo features fluid camera tracking across a scenic landscape, demonstrating the ability to maintain visual coherence during complex camera movements with rich environmental sound design.
Seedance 1.5 Pro creates compelling character interactions with emotionally consistent performances and natural dialogue delivery that showcases the depth of the storytelling engine.
Seedance 1.5 Pro maintains narrative continuity across multiple characters, each with distinct voices and emotional arcs that weave together into a cohesive dramatic experience.
Seedance 1.5 Pro generates high-energy action content with precisely timed sound effects, demonstrating exceptional audio-visual synchronization capabilities at speed and during rapid scene transitions.
This Seedance 1.5 Pro creation demonstrates sophisticated atmospheric rendering with layered ambient audio that creates a rich, immersive viewing experience worthy of film festival submissions.
Get answers to the most common questions about capabilities, usage scenarios, and technical requirements for this advanced AI video generation platform.
Experience the future of AI-powered content creation with Seedance 1.5 Pro. Whether you are a filmmaker, content creator, or marketing professional, Seedance 1.5 Pro gives you the tools to produce stunning audio-video content from simple text prompts. Join thousands of creators already using Seedance 1.5 Pro to bring their creative visions to life.
