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Show HN: Seedance 2.0 Pro AI Video Generator

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Seedance 2.0 Pro, a new AI video generator from ByteDance, allows users to create 2K videos driven by uploaded audio, featuring persistent character identity and faster rendering for cinematic storytelling.

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Show HN:Seedance 2.0 Pro AI 影片生成器

Hacker News
大約 1 個月前

AI 生成摘要

ByteDance 推出全新 AI 影片生成器 Seedance 2.0 Pro,支援使用者透過上傳音訊生成 2K 影片,具備持續的角色身份識別和更快的渲染速度,旨在實現電影級敘事。

Seedance 2.0 Pro – Audio-Driven 2K AI Video Generator

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Seedance 2.0 Pro The Ultimate Audio-Driven Video Foundation for Cinematic Storytelling;

Turn your audio into reality. Seedance 2.0 Pro masters the fusion of sound and vision, allowing user-uploaded audio to drive precise video generation. With persistent character identity, 2K resolution, and 30% faster rendering, it redefines the boundaries of AI filmmaking.

Seedance 2.0 Pro AI Video Generator

Camera movement is generated based on the prompt.

Ready to Render

What IsSeedance 2.0 Pro?

Seedance 2.0 Pro is ByteDance's flagship AI video model, engineered to bridge the gap between static sound and dynamic visual narratives. Building on the native audio-visual foundation of v1.5, it introduces a revolutionary Audio-to-Video capability, enabling creators to upload their own voiceovers or soundtracks to drive scene generation.

Solving Industry Challenges

It addresses the industry's most critical challenges: maintaining consistent character identity across multiple shots and delivering broadcast-quality 2K resolution. With a 30% boost in generation speed, Seedance 2.0 Pro empowers creators to produce coherent, high-fidelity stories where dialogue, action, and ambient sound resonate in perfect harmony.

How to Use Seedance 2.0 Pro

A simple three-step workflow showing how to use Seedance 2.0 Pro effectively, with clear prompting guidance for both text and image inputs.

Choose Your Input

Text or Image

Start by selecting your creative base. Switch seamlessly between T2V (Text-to-Video) for pure imagination or I2V (Image-to-Video) to bring static reference images to life. Seedance 2.0 Pro offers total flexibility to match your workflow.

Write & Refine Prompt

Direct the Scene

Craft a clear vision using our prompting guide. Describe the lighting, camera motion, and character emotions. Strong, detailed prompts allow the model to understand your intent, ensuring consistent storytelling across every shot.

Generate & Iterate

Cinematic Result

Submit your directive and watch Seedance 2.0 Pro render smooth, 1080p cinematic footage in minutes. Review the output, tweak your parameters if needed, and iterate rapidly to achieve the perfect final cut.

Key Features of Seedance 2.0 Pro

Seedance 2.0 Pro upgrades every aspect of production, combining user-controlled audio input with high-definition visual fidelity and rigorous consistency controls.

Audio-to-Video Generation (User-Uploaded Audio)

For the first time, sound directs the scene. Creators can upload custom audio tracks—dialogue, music, or narration—and Seedance 2.0 Pro will generate matching visuals with millisecond-accurate lip-synchronization and rhythm alignment. The visuals move to the beat of your files.

Persistent Multi-Character Identity

Say goodbye to flickering faces. Seedance 2.0 Pro locks in facial features, clothing details, and body types across different camera angles and scenes. Whether it's a close-up monologue or a wide-shot action sequence, your characters remain unmistakably themselves throughout the story.

2K Resolution with 30% Faster Inference

Quality no longer requires waiting. The model now outputs stunning 2K resolution video, capturing subtle skin textures and lighting nuances. Optimized architecture delivers these high-fidelity results with a 30% increase in generation speed compared to the previous generation.

Context-Aware Foley & Ambient Sound

Beyond dialogue, the model intelligently generates immersive soundscapes. It analyzes the visual action to create synchronized Foley effects—footsteps, rustling clothes, impact sounds—and layers them with environment-specific ambient noise for a full cinematic mix.

Cinematic Multi-Shot Continuity

Design complex narratives with confidence. Seedance 2.0 Pro understands narrative flow, ensuring that lighting, color grading, and spatial logic remain consistent across multiple generated shots, making it ideal for long-form content creation.

Why Choose Seedance 2.0 Pro

Seedance 2.0 Pro is built for creators who care about results—saving time, controlling costs, and producing consistent videos that are actually usable.

Spend Less Time Fixing, More Time Creating

Stable outputs and consistent visuals reduce rework, helping you move from idea to finished video faster.

Create Videos That Feel Complete, Not Fragmented

Integrated audio and visual coherence mean your videos feel polished, immersive, and ready to share without extra tools.

Maintain Creative Consistency Across Projects

Characters and scenes stay visually aligned, allowing you to build recognizable stories instead of disconnected clips.

Scale Production Without Cost Surprises

Usage-based pricing gives you predictable costs, making it easier to plan content without committing to subscriptions.

Turn Complex Ideas into Clear Visual Stories

Accurate prompt understanding helps translate detailed concepts into structured, multi-scene narratives.

Suitable for Real-World, Professional Use

Outputs are designed to be production-ready, supporting marketing, education, and storytelling at a commercial level.

Core Technical Breakthroughs in Seedance 2.0 Pro

Seedance 2.0 Pro represents a paradigm shift in generative architecture, moving from simple alignment to deep audio-visual conditioning and temporal coherence.

Audio-Conditioned Diffusion Architecture

Unlike models that only 'react' to sound, Seedance 2.0 Pro treats audio as a primary control signal. The updated architecture decodes user-uploaded audio waveforms to drive facial muscle movements and scene dynamics, achieving lip-sync accuracy that rivals motion capture.

Temporal Identity Attention Mechanism

To solve the consistency problem, we introduced a specialized attention mechanism that 'remembers' subject features. This allows the model to reference character attributes from previous frames or reference images, maintaining identity stability over longer durations and complex movements.

High-Efficiency Rendering Pipeline

By optimizing the latent diffusion process, we achieved a dual breakthrough: higher resolution and lower latency. The pipeline supports 2K output while reducing computational overhead by 30%, making professional-grade iteration faster and more accessible.

Multi-Layered Audio Synthesis

The model's audio engine now separates sound into distinct semantic layers: Dialogue, Foley (action sounds), and Ambience. This separation allows for cleaner mixing and more realistic interactions between what you see and what you hear.

Professional-Grade Motion Control

Enhanced motion priors allow for more deliberate camera movements and character acting. The model can distinguish between subtle emotional micro-expressions and grand dynamic actions, giving directors fine-grained control over the performance.

Seedance 2.0 Pro Video Showcase Audio-Driven Cinematic Reality

Witness the future of AI video. Explore examples demonstrating Audio-to-Video generation, precise lip-sync, 2K resolution, and persistent character identity across complex scenes.

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Professional Use Cases withSeedance 2.0 Pro

Seedance 2.0 Pro empowers creators across industries to turn audio and ideas into high-fidelity reality, driving engagement and conversion.

Advertising & Marketing

Turn Static Assets into High-Conversion Video

Capture attention instantly. Transform static product images into dynamic, eye-catching showcases. With 2K resolution and consistent branding, create compelling promotional content that drives clicks and conversions without expensive shoots.

Social Media Content

Viral-Ready Creation for TikTok, YouTube & Twitter

Dominate the feed with premium video quality. Whether it's rapid-fire shorts for TikTok or narrative content for YouTube, Seedance 2.0 Pro generates engaging, algorithm-friendly videos with synced audio to grow your audience fast.

E-Commerce & Product Display

Dynamic 360° Views & Lifestyle Demonstrations

Elevate the shopping experience. Generate dynamic 360° views and realistic lifestyle videos that show products in action. Highlight key features in high definition to build trust and significantly boost conversion rates.

Education & Training

Immersive Visual Learning Materials

Make curriculum come alive. Transform textbooks into engaging animated explanations, historical reconstructions, and interactive learning modules. Use precise lip-sync to create virtual avatars that deliver lectures with clarity and engagement.

Creative Storytelling

Auteur Control for Filmmakers & Artists

Craft unique narratives with AI-driven precision. Perfect for filmmakers and artists exploring new forms of expression, Seedance 2.0 Pro maintains character identity across shots, allowing for coherent, emotional storytelling that rivals traditional production.

Fantasy & Surrealism

Visualize the Impossible

Unleash your imagination. Create otherworldly scenes that cameras cannot capture—from dreamscapes and magical transformations to surreal experiences. Seedance 2.0 Pro renders abstract concepts into vivid, 2K reality.

Choose the Pricing Plan That Fits Your Needs

Flexible and transparent pricing with no subscriptions. Pay only for what you use, based on your actual video generation.

Starter

Basic

Plus

Professional

Choose one-time credits • Flexible billing options

Frequently Asked Questionsabout Seedance 2.0 Pro

Everything you need to know about the new Audio-to-Video capabilities and performance upgrades.

What is Seedance 2.0 Pro and how does it differ from v1.5?

Seedance 2.0 Pro is a next-gen AI video model. Unlike v1.5, it introduces Audio-to-Video capability from uploaded files, 2K resolution, 30% faster generation, and superior multi-character consistency.

Can I upload my own audio files to generate video with Seedance 2.0 Pro?

Yes. Upload your voiceover or music, and Seedance 2.0 Pro will generate videos with precise lip-sync and rhythm alignment, perfect for dubbing and character-driven narratives.

How does Seedance 2.0 Pro handle character consistency across multiple shots?

It uses an advanced Identity Persistence mechanism. Facial features and clothing remain stable across multiple shots and angles, solving a major pain point in AI video storytelling.

Can Seedance 2.0 Pro generate sound effects if I only provide a video prompt?

Yes. Its native audio generation creates synchronized dialogue, ambient sound, and Foley effects automatically from your text prompt and visual action.

What is the maximum resolution and generation speed of Seedance 2.0 Pro?

It supports 2K resolution (2048x1080) for cinematic quality, while the optimized pipeline delivers 30% faster generation speeds compared to Seedance 1.5 Pro.

Is Seedance 2.0 Pro suitable for creating commercial ads or social media content?

Absolutely. It's ideal for commercial ads and social media content, helping you create viral-ready videos for TikTok and YouTube, and turning static images into brand storytelling assets.

Is commercial use allowed for videos created with Seedance 2.0 Pro?

Yes. Seedance 2.0 Pro grants full commercial rights to users. You retain copyright ownership of your generated content, allowing you to freely monetize videos on social platforms, use them for advertising campaigns, or deliver them for professional client projects without restriction.

Start Creating with Seedance 2.0 Pro Today

Turn ideas into professional AI videos in minutes

Experience faster generation, stable motion, and high-quality results with Seedance 2.0 Pro.

Create your first AI video now and streamline your content workflow.

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