LongCat Avatar Audio-Driven AI Avatar Generator for Long Video
A state-of-the-art audio-driven avatar model for long-duration video generation.Delivers super-realistic lip sync, natural human dynamics, and long-term identity consistency.
Click to upload image
Supported formats: JPG, JPEG, PNG, WEBP. Max size: 10MB
Click to upload audio
Supported format: MP3,WAV,M4A,OGG,FLAC. Max size: 10MB. Duration: 5s ~ 10 min
Key Features Of LongCat Avatar
Built for creators who demand professional quality without the complexity.
Open-Source SOTA Realism
LongCat Avatar ranks #1 in overall anthropomorphism for both single-person and multi-person scenarios in EvalTalker evaluations, validated by 492 participants and multiple independent raters.
Designed for Long-Form Content
Unlike short-clip-focused models, LongCat Avatar is built specifically for long-form video generation, eliminating drift, jitter, and motion collapse.
More Expressive Than Traditional Avatar Models
Thanks to disentangled motion modeling, LongCat Avatar generates richer body language and facial expressions, rather than stiff, speech-only movements.
Production-Ready Architecture
Support for multiple generation modes and stable long sequences makes LongCat Avatar suitable for commercial, research, and SaaS deployments.
LongCat Avatar Use Cases
Discover how LongCat Avatar transforms audio into realistic, long-duration video content across diverse applications.
Actor / Actress
Generate expressive performances with perfectly synchronized lip movements and consistent facial identity across long cinematic scenes.
Singer
Create rhythm-aware body motion aligned with vocals, producing engaging musical performances without motion degradation.
Podcast & Long Interviews
Support hours-long speaking videos while maintaining consistent appearance, natural gestures, and visual clarity.
Sales & Corporate Presentations
Produce professional AI presenters that handle silent moments naturally, avoiding awkward pauses or robotic stillness.
Multi-Character Conversations
Generate synchronized videos for multiple speakers with accurate turn-taking, individual identity preservation, and natural group dynamics.
How to Use LongCat Avatar
Creating long-form audio-driven avatar videos in three simple steps.
Upload Audio & Reference
Upload your audio file (speech, music, or podcast) and optionally provide a reference image or text description. LongCat Avatar supports AT2V (Audio-Text-to-Video), ATI2V (Audio-Text-Image-to-Video), and audio-conditioned video continuation modes.
Configure Generation Settings
Select your generation mode and configure settings for long-form video generation. Choose video length, resolution (up to 720p/30fps), and specify if you need multi-person support or infinite-length sequences. The model handles long-duration content without quality degradation.
Generate Long-Form Avatar Video
Click "Generate" and LongCat Avatar creates your video with perfect lip synchronization, natural gestures, and consistent identity. The model maintains visual quality across long sequences, generating expressive motion even during silent segments. Your realistic avatar video is ready for production use.
Ready to create your own long-form avatar videos?
What Users Are Saying
Real teams and creators use LongCat Avatar for production-ready, long-form avatar generation.
LongCat Avatar's long-sequence stability is game-changing. We can generate hour-long presentations without identity drift or quality collapse. The natural gestures during silent moments make our avatars feel truly alive.
Creating video versions of our 2-hour podcasts used to be impossible. LongCat Avatar maintains perfect lip sync and consistent appearance throughout the entire duration. It's like having a professional actor on demand.
Our course instructors can now create engaging video lectures from audio recordings. The model handles multi-person scenarios perfectly, making complex conversations look natural and professional.
Ready to create your own success story?
FAQs about LongCat Avatar
Everything you need to know about LongCat Avatar.
LongCat Avatar is an audio-driven avatar model designed for super-realistic, long-form video generation with stable identity and natural motion.
It supports AT2V, ATI2V, and audio-conditioned video continuation.
LongCat Avatar offers better long-sequence stability, more natural motion, and avoids rigid copy-paste artifacts.
Yes, it is specifically optimized for long-duration and infinite-length video generation.
Yes, multi-person scenarios are natively supported.
Through Cross-Chunk Latent Stitching, which eliminates redundant VAE decode-encode cycles.
Yes, natural gestures and idle movements are generated even without speech.
Yes, it is an open-source model with state-of-the-art evaluation results.
Media, entertainment, education, marketing, sales, and virtual human platforms.
Absolutely. Its stability and flexibility make it ideal for commercial SaaS deployment.