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StableAvatar: Infinite-Length Audio-Driven Avatar Video Generation
Transform a single photo and audio into realistic talking heads and animated avatars
Create infinite-length high-quality avatar videos with StableAvatar AI. No post-processing required. Just upload a photo and audio, and watch StableAvatar AI generate realistic talking heads with perfect lip-sync.
Upload Your Photo
JPG, PNG, WEBP up to 10MB
Upload Your Audio File
MP3, WAV, M4A
Credit explanation: 5s (180 credits), 10s (360 credits), 15s (540 credits)
Maximum upload duration: 15 seconds
StableAvatar AI Preview
Your avatar video will appear here
Upload a photo and audio to start StableAvatar AI
100-300s
Processing Time
720p
Video Quality
Outstanding Avatar Videos Powered By StableAvatar AI
Explore amazing avatar videos generated from photos and audio. Each case showcases the power of StableAvatar AI's infinite-length generation technology.
How StableAvatar AI Works
Create Infinite-Length Avatar Videos in 3 Simple Steps
Upload. Generate. Download. StableAvatar AI makes avatar video creation simple and professional.
1. Upload Photo & Audio
Upload a reference image containing a person's face and provide an audio file with speech, singing, or other vocal content. StableAvatar AI supports JPG, PNG, WEBP photos and MP3, WAV, M4A audio.
2. Generate Avatar Video
The system analyzes the audio content to extract timing, emotional content, phonetic information, and rhythm patterns. StableAvatar AI processes your inputs and creates infinite-length avatar videos with perfect lip-sync and natural expressions.
3. Download & Use
The diffusion transformer generates video frames with proper lip-sync, expressions, and movements guided by the Time-step-aware Audio Adapter. Get your professional avatar video instantly. Download and use for business, education, marketing, or entertainment!
What is StableAvatar AI
Explore amazing avatar videos generated from single photos and audio. Each creation showcases the power of StableAvatar AI's infinite-length avatar generation technology.
Infinite-length business presentations
a video diffusion transformer that processes single reference images and audio tracks to generate infinite-length avatar videos. It uses a Time-step-aware Audio Adapter to prevent error accumulation across video segments, enabling hours of content without quality degradation.
Educational content with virtual instructors
a end-to-end system that creates virtual instructors from photos and audio. It integrates tailored training and inference modules to enable infinite-length video generation, maintaining perfect lip-sync and natural expressions throughout entire lectures.
Marketing campaigns with brand ambassadors
a technology that generates brand ambassador videos using its Audio Native Guidance Mechanism. It leverages the diffusion's evolving joint audio-latent prediction as a dynamic guidance signal, creating realistic talking heads for marketing campaigns.
Entertainment content with animated characters
a creative platform that animates characters using its Dynamic Weighted Sliding-window Strategy. This approach fuses latent representations over time to enhance video smoothness, creating natural facial expressions and movements.
Multi-person conversations and interviews
a system that handles multi-person scenarios through its advanced audio modeling. Unlike traditional models that rely on third-party audio extractors, it prevents latent distribution error accumulation across video clips.
Accessibility content with sign language interpreters
a technology that creates accessibility content through its innovative approach to audio-driven avatar generation. It processes interpreter photos and audio to generate synchronized avatars without requiring face-swapping tools or post-processing.
Key Features of StableAvatar AI
StableAvatar AI helps you create infinite-length avatar videos in minutes. No experience needed—just upload a photo and audio!
Infinite-Length Generation
Creates videos of any length without quality degradation, maintaining consistent identity and synchronization throughout hours of content.
Identity Preservation
Maintains the original person's facial features, expressions, and unique characteristics without drift or distortion over time.
Multi-Person Support
Handles multiple people in a single scene, animating each face according to the audio content with appropriate timing and coordination.
Perfect Audio Synchronization
Achieves precise lip-sync that remains accurate across the entire video duration, with natural timing and rhythm matching.
Natural Expression Generation
Creates realistic facial expressions, head movements, eye blinks, and gestures that match the emotional content of the audio.
Scene Animation
Animates entire scenes including background elements, clothing movement, and environmental details for complete realism.
See What StableAvatar AI Can Do
Discover how StableAvatar AI transforms your photos and audio into infinite-length avatar videos with perfect lip-sync and natural expressions.
Create Professional Business Presentations
Transform your business presentations into engaging avatar videos with StableAvatar AI. Upload a professional photo and presentation audio to create hours of content with perfect lip-sync and natural expressions.
Generate Educational Videos with Virtual Instructors
Create engaging educational content with StableAvatar AI. Upload a teacher's photo and lecture audio to generate infinite-length instructional videos that maintain perfect synchronization.
Produce Marketing Videos with Brand Ambassadors
Generate professional marketing videos with StableAvatar AI. Upload a spokesperson's photo and marketing script to create compelling brand messages with realistic talking heads.
Ready to Create Your Avatar?
Choose Your StableAvatar AI Plan
Start creating professional avatar videos for free, then upgrade to unlock advanced features and unlimited generations with our flexible credit system.
Basic
Ideal for individual creators
- 1000 credits
- Up to 720p resolution
- Standard Quality
- Basic editing tools
- Standard customer support
Standard
For creators and professionals
- 1500 credits
- Up to 1080p resolution
- Advanced Quality
- Priority customer support
- Commercial use license
Pro
For teams and businesses
- 5000 credits
- Up to 1080p resolution
- Advanced Quality
- Expert team support
- Commercial use license
What Professionals Say About StableAvatar AI
Join millions of professionals worldwide using StableAvatar AI to create infinite-length avatar videos with perfect lip-sync and natural expressions
"StableAvatar AI has completely revolutionized my business presentations. Using StableAvatar AI, I can create hours of professional content from a single photo and audio. The perfect lip-sync and natural expressions make it indistinguishable from live presentations."
"Our team relies on StableAvatar AI for every marketing campaign now. StableAvatar AI lets us create professional spokesperson videos simply by uploading a photo and script audio. The infinite-length capability is game-changing for our content strategy."
"As an educational content creator, StableAvatar AI has redefined my workflow completely. I can create virtual instructors that maintain perfect synchronization throughout entire lectures. Students love the natural teaching expressions."
"Our conference success story starts with StableAvatar AI. We can create virtual speakers that deliver presentations with natural gestures and perfect timing. Every event organizer should be using StableAvatar AI."
"What makes StableAvatar AI special is its ability to create accessibility content. I can generate sign language interpreters that help make content accessible to diverse audiences. The technology is truly inclusive."
"StableAvatar AI revolutionized my entertainment content creation. I can create animated characters with realistic movements and expressions that match the audio perfectly. The infinite-length capability opens endless creative possibilities."
"StableAvatar AI has completely revolutionized my business presentations. Using StableAvatar AI, I can create hours of professional content from a single photo and audio. The perfect lip-sync and natural expressions make it indistinguishable from live presentations."
"Our team relies on StableAvatar AI for every marketing campaign now. StableAvatar AI lets us create professional spokesperson videos simply by uploading a photo and script audio. The infinite-length capability is game-changing for our content strategy."
"As an educational content creator, StableAvatar AI has redefined my workflow completely. I can create virtual instructors that maintain perfect synchronization throughout entire lectures. Students love the natural teaching expressions."
"Our conference success story starts with StableAvatar AI. We can create virtual speakers that deliver presentations with natural gestures and perfect timing. Every event organizer should be using StableAvatar AI."
"What makes StableAvatar AI special is its ability to create accessibility content. I can generate sign language interpreters that help make content accessible to diverse audiences. The technology is truly inclusive."
"StableAvatar AI revolutionized my entertainment content creation. I can create animated characters with realistic movements and expressions that match the audio perfectly. The infinite-length capability opens endless creative possibilities."
Frequently Asked Questions
Get answers to the most common questions about StableAvatar AI and StableAvatar AI technology.
Ready to Try StableAvatar AI?
Join millions of creators using StableAvatar AI to turn wild ideas into viral content. Start creating amazing content with StableAvatar AI engine technology today!