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🎥 Video Generation

LongCat Single Avatar (Image + Audio)

Audio-driven avatar with custom image. Creates super-realistic, lip-synchronized videos with natural dynamics using your own portrait image

Example Output

Inputs

Input Image

Input Image
Image

Input Audio

Output

Generated

Try LongCat Single Avatar (Image + Audio)

Fill in the parameters below and click "Generate" to try this model

Image to animate

Audio file to drive the avatar

Text prompt to guide video generation

Negative prompt to avoid unwanted elements

Video resolution (480p=1 unit/sec, 720p=4 units/sec)

Video segments (1st=~5.8s, additional=5s each)

Number of inference steps

Text guidance scale for classifier-free guidance

Audio guidance scale (higher=exaggerated mouth)

Your inputs will be saved and ready after sign in

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About LongCat Single Avatar (Image + Audio)

The LongCat Single Avatar (Image + Audio) model transforms static portraits into dynamic, ultra-realistic videos driven entirely by your own audio. Leveraging advanced AI and deep learning, this model generates lifelike, lip-synced avatar animations with natural facial expressions, smooth movements, and precise mouth synchronization. Simply upload a portrait image and an audio clip, provide a guiding text prompt, and watch as your avatar comes to life on screen. At its core, LongCat Single Avatar uses state-of-the-art video generation technology that analyzes both visual and audio cues. The model produces videos with remarkable realism, ensuring the avatar's lips, facial expressions, and head movements match the audio input perfectly. The result is an engaging, believable video that feels as though a real person is speaking, not just an animated still image. Customization is a key strength of this model. Users can control video style and content through detailed text prompts, while negative prompts help avoid unwanted artifacts or qualities. The system offers flexibility in output resolution, supporting both standard (480p) and high-definition (720p) videos. For longer content, you can chain up to 10 video segments, each seamlessly animated for up to 5-6 seconds, making it ideal for presentations, explainer videos, virtual communication, and more. Advanced options cater to both novices and power users. Parameters like inference steps, text and audio guidance scales, and random seed control allow fine-tuning for optimal results. The model’s audio guidance features ensure accurate and expressive lip movements, while the integrated safety checker provides responsible content generation. LongCat Single Avatar is perfect for content creators, educators, marketers, and anyone seeking to generate personalized, talking avatar videos without complex video editing. Its applications range from personalized video messages and social media content to educational explainers, business presentations, and digital assistants. By combining ease of use with cutting-edge AI, this model democratizes high-quality video avatar creation, making it accessible for any skill level. Whether you’re enhancing your brand with a unique digital spokesperson, bringing static images to life for storytelling, or streamlining video production workflows, LongCat Single Avatar offers a powerful, intuitive solution. All usage operates on a convenient pay-as-you-go credit system, letting you scale your creative output as needed. Experience the next generation of AI-driven video content and engage your audience like never before.

✨ Key Features

Transforms any portrait image and audio clip into ultra-realistic, lip-synced avatar videos.

Advanced lip synchronization ensures mouth movements precisely match the provided audio.

Supports custom text prompts and negative prompts for fine-grained video content control.

Flexible video resolution options: choose between standard 480p and HD 720p outputs.

Generate videos up to 10 segments long, suitable for extended presentations or messages.

Adjustable inference steps, text guidance, and audio guidance scales for tailored results.

Built-in safety checker helps ensure responsible and appropriate content generation.

💡 Use Cases

Creating personalized video greetings or announcements with your own avatar.

Generating explainer or educational videos using a custom digital spokesperson.

Producing social media content with engaging, talking character images.

Enhancing business presentations with an animated, voice-driven avatar.

Developing virtual assistants and chatbots with realistic, speaking faces.

Storytelling and digital content creation for marketing campaigns.

Localizing messages by animating avatars in different languages or voices.

🎯

Best For

Content creators, educators, marketers, social media managers, and anyone seeking to generate personalized, realistic avatar videos.

👍 Pros

  • Produces highly realistic, expressive avatar videos from simple inputs.
  • Easy to use with both beginner-friendly and advanced customization options.
  • Supports both short and longer video segments for flexible content creation.
  • Fine-tuned control over style, quality, and dynamics via prompts and parameters.
  • No need for complex video editing or animation skills.

⚠️ Considerations

  • Requires high-quality input images and audio for best results.
  • Longer videos may require multiple segments, increasing generation time.
  • Limited to single avatar animation per video.
  • Advanced settings may require experimentation for optimal outcomes.

📚 How to Use LongCat Single Avatar (Image + Audio)

1

Upload your chosen portrait image (JPG, PNG, or other supported formats).

2

Upload the audio file you want the avatar to speak or animate to.

3

Enter a descriptive prompt to guide the video’s scenario, expression, or action.

4

Optionally, add a negative prompt to avoid unwanted video features or artifacts.

5

Select your preferred video resolution (480p or 720p) and set the desired video length by choosing the number of segments.

6

Click generate and wait for the AI to process; download your finished avatar video once it’s ready.

Frequently Asked Questions

🏷️ Related Keywords

AI avatar video lip sync video generator audio to video AI realistic talking avatar portrait animation AI video creation custom avatar generator audio-driven animation video generation AI virtual spokesperson