LongCat-Video-Avatar: Redefining High-Fidelity Long-Form Digital Humans
The LongCat generation engine is now live on ArtAny AI. Transform a single portrait into an expressive, long-duration video avatar with just one click. Say goodbye to identity drift and embrace industrial-grade temporal stability.
How to Use Our LongCat-Video-Avatar Generator
On the ArtAny AI platform, creating a talking digital human has never been easier. Simply upload a photo and an audio track, and let the LongCat-Video-Avatar engine handle the rest.
Upload Your Source Portrait
Select a clear, front-facing photo of the character you wish to animate. Thanks to LongCat's Zero-shot capability, no prior training or fine-tuning is required. High-resolution images will yield the most realistic facial textures.
Upload Your Audio Track
Upload an audio file (MP3, WAV, or M4A) containing the speech or narration. Our generator uses advanced Audio-to-Motion technology to precisely synchronize lip movements with the sound. Beyond just lip-syncing, the engine also infers natural head tilts and blinking patterns based on the tone and rhythm of the audio.
Configure Generation Parameters
Fine-tune the settings to achieve the best results for your creation:
Resolution:
Choose between 480p and 720p. 480p is ideal for quick previews, while 720p provides standard HD quality suitable for social media and professional presentations.
Seed:
Used to control the randomness of the generation. Enter a specific number to try and replicate a certain style, or enter -1 to use a random seed for unique variations every time.
One-Click Synthesis & Review
Click "Generate" and let the ArtAny AI high-performance cluster handle the rendering. Within minutes, you can preview the generated long-sequence video. You can play and review the results online directly to ensure every micro-expression aligns with your creative vision.
Pro Tip: Capture the perfect look!
If a particular generation stands out, save its Seed. Using this seed with the original assets ensures you can recapture that unique vibe in future creations.
LongCat Avatar Key Capabilities
| Feature Module | Description | Technical Highlight |
|---|---|---|
| Ultimate ID-Preservation | Facial features remain 100% stable even in videos lasting several minutes. | Based on Long-Context Temporal Consistency Algorithm |
| Zero-shot Rapid Driving | Instantly animate any photo without the need for person-specific pre-training. | Powerful Cross-domain Feature Decoupling Technology |
| Refined Expressive Nuance | Precisely replicates eye contact, lip movements, and micro-expressions, avoiding a "robotic" feel. | High-fidelity Geometry-Aware Module |
| Native HD Output | Every frame delivers 720p-level clarity, meeting professional video production standards. | Multi-scale Super-resolution Generator |
Ultimate ID-Preservation
Facial features remain 100% stable even in videos lasting several minutes.
Based on Long-Context Temporal Consistency Algorithm
Zero-shot Rapid Driving
Instantly animate any photo without the need for person-specific pre-training.
Powerful Cross-domain Feature Decoupling Technology
Refined Expressive Nuance
Precisely replicates eye contact, lip movements, and micro-expressions, avoiding a "robotic" feel.
High-fidelity Geometry-Aware Module
Native HD Output
Every frame delivers 720p-level clarity, meeting professional video production standards.
Multi-scale Super-resolution Generator
Open Source & Resources
Open Source & Community Empowerment
The core technology of LongCat-Video-Avatar originates from the open-source contributions of the Meituan Tech Team. We invite developers to explore the endless possibilities of long-video avatars within the community.
Official Showcase & Community Voice
Official Showcases
Experience LongCat's superior performance in handling long-sequence motions, complex lighting adaptations, and precise audio synchronization.
Community Feedback
"This is the best open-source model I've seen for temporal consistency—identity features show almost zero drift."
— Senior VFX Artist
"The audio-driven movements in LongCat are incredibly natural, finally solving the 'uncanny valley' issue in digital avatars."
— Independent Content Creator
Technical Comparison
| Metrics | LongCat-Video-Avatar | Standard Diffusion Models |
|---|---|---|
| Temporal Stability | Exceptional (Excellent) | "Lower, noticeable flickering" |
| Max Video Duration | Native support for minutes of video | Limited to 5-10 second clips |
| ID Similarity | > 95% (High Fidelity) | ~75% (Identity drift occurs) |
| Training Requirement | Zero-shot (No training needed) | Often requires person-specific fine-tuning |
Temporal Stability
Max Video Duration
ID Similarity
Training Requirement
Call to Action
Every Blink, Precisely Controlled. The ArtAny AI platform is more than just a tool; it is the precise executor of your creative vision. Invoke the LongCat-Video-Avatar generator now and experience the charm of next-gen digital humans.