InfiniteTalk AI Lip-Sync Video Generator

InfiniteTalk AI Lip-Sync Video GeneratorGo beyond simple lip-sync. Our advanced AI precisely synchronizes head movements, body posture, and facial expressions to any audio track, generating stable, distortion-free videos of infinite length.

Click or drag image here

JPEG, PNG only. Max 10MB

MP3,WAV,M4A,OGG,FLAC
click and drop select audio fileUpload audio
480p
1 Credit/sec
720p
2 Credits/sec

Want Multi-Character Conversations?

Create realistic dialogues with multiple speakers
using Multitalk

Preview

InfiniteTalk AI Preview

How to use InfiniteTalk AI in Just 3 Steps

Create professional AI videos with ease—no skills or costly gear required.

1

Upload Your Content

Drag and drop your photos or videos, then add your desired audio content. Supports multiple formats with one-click upload to start creating.

2

AI Magic Processing

Our powerful AI engine automatically analyzes audio, precisely matches lip movements, and generates natural, fluid facial expressions and body movements.

3

Export & Share

Export high-definition videos with one click, supporting multiple resolutions. Share directly to social platforms or save locally for your use.

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Pro Tips

For the best results, use high-quality images with clear facial features and clean, well-recorded audio. InfiniteTalk AI performs best with front-facing photos and clear speech.The maximum generation length is 600 seconds.

Credit Cost: Every 5 seconds, 480P requires 5 credits, 720P requires 10 credits

What is InfiniteTalk AI?

InfiniteTalk AI is an audio-driven video generation tool that creates lifelike talking-avatar videos. By using audio as the core driver, it brings characters to life with natural lip-sync, expressive facial movements, and realistic body gestures—whether you start from an image or an existing video.

Built on a sparse-frame video-dubbing framework, InfiniteTalk AI can take any video and audio track and synthesize a seamless new clip where lip movements, head motion, posture, and expressions stay perfectly aligned with the voice.

One of its standout advantages is the ability to generate videos without length limits. Unlike traditional tools restricted to a few seconds, InfiniteTalk AI enables minute-long or even extended videos—constrained only by your device's computing power.

Powered by a sparse-frame video dubbing framework, InfiniteTalk AI generates new videos from any given footage and audio, ensuring:

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Precise lip-sync accuracy

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Natural head and body movements

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Consistent facial expressions

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Smooth, seamless video output

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InfiniteTalk AI – Video2Video

The Video2Video feature is one of the most popular workflows in InfiniteTalk AI. It transforms any existing video into a fully animated talking character with natural lip-sync and expressive movement.

1

Original Video Footage

Upload a video featuring the person or character you want to animate.

2

Audio or Script Input

Provide an audio track or a text-to-speech script for the voice.

InfiniteTalk AI automatically detects the face, tracks every frame, and generates precise lip-sync, expressions, and motion that match the audio perfectly. Even when the subject turns, moves, or changes posture, the animation stays consistent, stable, and lifelike.

Best suited for:
Commercial adsE-commerce product explainersNarrative storytellingSocial media content
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InfiniteTalk AI – ImageToVideo

Beyond video input, InfiniteTalk AI also offers an ImageToVideo feature that brings static photos to life. With just one image and an audio track, you can create a smooth, natural talking-avatar video in seconds.

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One-click creation

Simply upload an image and audio, and the system generates a talking video automatically.

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Realistic performance

AI reconstructs facial features and head motion to avoid stiff or robotic movement.

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Emotion-driven animation

Expressions adapt to the tone of the voice—whether it's smiling, surprised, curious, or anything in between.

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Lightweight workflow

No video source required. A single photo is all you need.

Use cases:
AI virtual presentersPersonal brandingBrand mascotsVirtual lecturers

⚙️ InfiniteTalk AI – Technical Architecture

InfiniteTalk AI is powered by a smart and efficient technical backbone that makes its natural, high-quality video generation possible. Instead of processing an entire video at once, the system works in smaller frame chunks to keep motion smooth and consistent.

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Smart Frame Processing

Each chunk contains around 81 frames, with the last 25 frames carried into the next segment. This overlap ensures seamless transitions—eliminating visual jumps, glitches, or broken motion.

Seamless frame transitions
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Resolution Flexibility

The platform supports both 480p for faster results and 720p for sharper, more detailed outputs, giving creators the freedom to choose the best balance between speed and quality.

Quality vs speed optimization

Performance Boosters

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TeaCache Acceleration

Boosts rendering speeds for faster video generation

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APG (Adaptive Parameter Grouping)

Improves system efficiency and overall optimization

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Quantization Options

Allows smooth performance even on lower-end GPUs with limited VRAM

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Built for Everyone

In short, InfiniteTalk AI is designed to be powerful, flexible, and accessible—whether you're working on a lightweight laptop or a high-end workstation.

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Ready to Create Your Talking Video?

Experience the power of InfiniteTalk AI. Upload your image and audio to generate professional, realistic talking-avatar videos in just minutes.

Start Creating Now
Free trial available
Professional quality