Audio-to-Video model

LongCat Single‑Avatar

Consistent identity for single‑speaker narration.

Audio‑driven avatar model for long‑form talking‑head videos with stable identity and natural motion.

Best for: Founder updates

Inputs: Image + Audio

Outputs: Video

What this model is best at

Short answer: Audio‑driven avatar model for long‑form talking‑head videos with stable identity and natural motion.

Use this workspace to preview the model, compare example output, and start creating with the recommended workflow for this model.

Highlight 1

Long‑duration stability and identity consistency.

Highlight 2

Audio‑driven lip sync with natural motion.

Highlight 3

Supports audio + text + image inputs.

Audio-to-Video

LongCat Single‑Avatar workspace

Start from the built-in workflow below, then tune the model inside the standard LipsyncX creation surface.

Talking Photo Video Dubbing Long Video Pet & Anime

1. Upload photo

1. Choose a face

Choose a template or uploadDrag & drop video or photoor click to upload

2. Choose Model

3. Add Script

Instant script templates

One-click copy for greetings, celebrations, and announcements.

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Billing unit10 credits / 5s

Billing units—

Estimated length—

Est. total—

Uses real audio duration when available.

Voice

Speech speed (0.90x)

0 / 1000

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Step 1/4

Choose a face

Follow the next step to keep building your video.

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Avg render time

7 min

Languages supported

50+

Creators onboarded

3,200+

Trusted by teams

StudioBlendAudioNovaCourseWaveMintlyVisionSpark

Founder update

Turn a headshot into a consistent video host.

Portrait

Founder update original

Generated

Founder update generated

Popular use cases

Use case 1

Founder videos

Weekly product updates.

Use case 2

Explainers

Script‑to‑video quickly.

Use case 3

Announcements

No camera needed.

Quick specs

Primary use

Single‑speaker avatar video

Inputs

Portrait + audio (or text)

Output

Talking‑head video

Best strength

Stable identity over longer clips

Best practices

Use a high‑resolution, well‑lit portrait.

Keep audio clean to avoid jittery mouth motion.

Match tone and pacing to the script intent.

FAQ

How long can outputs be?

Designed for long‑form generation up to about 2 minutes.

What inputs are supported?

Provide an image plus audio or text to drive the avatar.

What resolution does it target?

Outputs can reach up to 720p HD.

Ready to try LongCat Single‑Avatar?

Use the built-in workspace to test prompts, compare outputs, and see how this model fits your content workflow.