# Lip Sync

> Make a portrait speak an audio track, or dub an existing video by re-syncing its lips to new speech, with Kling Avatar, OmniHuman, Seedance and more.

Source: https://nodaro.ai/docs/nodes/video/lip-sync

The **Lip Sync** node makes a face speak an audio track. Give it a portrait and a voice track, and it makes a talking-head video. Give it a video and new audio, and it re-syncs the lips in the video to the new speech, which dubs the clip. You choose the model, and the node shows the inputs that model needs.

- Found in: Video › Animate & Perform
- Output: video
- Credits: 110–20000 per run, by model
- Models: 11
- API type: `lip-sync`

## When to use it
- A talking head from a single photo, for example an AI-generated character with a voiceover.
- A spokesperson video for a product demo.
- A dubbed version of a video: translated speech, re-synced to the speaker's lips.
- A performance directed by a prompt, such as singing into a microphone, with OmniHuman 1.5.

For a full avatar video from a script, with voices and captions built in, use [AI Avatar](https://nodaro.ai/docs/nodes/video/ai-avatar).

## Quick start
### Add the node

Press Tab on the canvas and choose **Video › Animate & Perform › Lip Sync**.

### Choose the model

Open the settings panel and choose a model under **Provider**. The node then shows the inputs that model needs: **Portrait**, **Source video**, or both.

### Connect the face and the voice

Connect an image to **Portrait**, or a video to **Source video**, and an audio node to **Audio**, for example [Text to Speech](https://nodaro.ai/docs/nodes/audio/text-to-speech).

### Run it

Click **Run**. The lip-synced video appears on the node.

Workflow: A portrait and a generated voice line become a talking-head video.

- Text → Text to Speech
- Generate Image → Lip Sync (portrait)
- Text to Speech → Lip Sync (audio)

## Portrait or video

| What you connect | What the node makes | Models |
| --- | --- | --- |
| A **Portrait** and **Audio** | A new talking-head video from a still image. | Kling Avatar, Kling Avatar Pro, InfiniTalk, OmniHuman 1.5, Seedance 2, Seedance 2 Fast, Seedance 2 Mini, Seedance 2.5, SadTalker |
| A **Source video** and **Audio** | The same video with its lips re-synced to the new audio. | Volcengine Lip Sync, Sync Lipsync v3, Lipsync 2 Pro, HeyGen Lipsync Precision, LatentSync, Video-Retalking |
| Either one, and **Audio** | Wav2Lip accepts a portrait or a video. | Wav2Lip |

## Inputs
| Input | Accepts | What it does |
| --- | --- | --- |
| **Audio** | Audio nodes | The speech or voiceover. Required for every model. |
| **Portrait** | Image nodes | A clear face photo, for portrait models. |
| **Source video** | Video nodes | The clip to dub, for dubbing models. |

The output, **Video**, is the URL of the lip-synced video. When several nodes are connected, the node card lets you choose which image, video and audio to use.

## Settings
| Setting | What it does |
| --- | --- |
| **Provider** | The lip-sync model. The default is **Kling Avatar**. |
| **Resolution** | On Kling Avatar, Kling Avatar Pro, InfiniTalk and the Seedance models: 480p or 720p, with 720p as the default. Seedance 2 also offers 1080p. OmniHuman 1.5 offers 720p or 1080p, with 1080p as the default. |
| **Motion Prompt (optional)** | On the same models: head and expression motion, for example "slight head nods" or "expressive eyebrows". On OmniHuman 1.5 it directs the whole performance. |
| **Pre & post text** | Text always added before and after the motion prompt. See [Prompt pre and post text](https://nodaro.ai/docs/concepts/prompt-pre-post-text). |

### Settings for specific models

| Model | Settings |
| --- | --- |
| **OmniHuman 1.5** | **Motion Prompt** directs the performance, for example "sing confidently into a microphone". **Fast Mode** trades some quality for speed. **Seed** makes a result repeatable; -1 means random. It animates people, pets and anime at any aspect ratio. |
| **HeyGen Lipsync Precision** | **Dynamic Duration** (on) adjusts the output length to the new audio. **Remove Music Track** (off) strips background music from the source video. **Speech Enhancement** (off) improves speech clarity. |
| **Lipsync 2 Pro** | **Sync Mode** sets what happens when the audio and the video have different lengths: **Loop** (the default), **Bounce**, **Cut off**, **Silence** or **Remap**. **Temperature**, from 0 to 1, sets how expressive the lip sync is; the default is 0.5. **Active Speaker Detection** syncs whoever is speaking. |
| **Sync Lipsync v3** | **Sync Mode**, with **Cut off** as the default, and **Active Speaker Detection**, which you should turn on for a video with more than one person. The model manages its own expressiveness. |
| **Volcengine Lip Sync** | **Mode**: **Lite** for one frontal speaker, faster, or **Basic** for complex scenes with several speakers. **Separate vocals (denoise)** strips noise from the audio. **Scene detection + speaker ID** (Basic only) finds scene cuts and who speaks. **Loop video if audio is longer** (Lite only, on by default) and **Reverse loop (ping-pong)** handle audio that runs past the video. **Template start time (seconds)** sets where in the video the lips start to follow. The output is as long as the audio: a longer video is cut, and a shorter one loops. |

The Seedance models do native, phoneme-level lip sync in more than 8 languages. They work like [Generate Video](https://nodaro.ai/docs/nodes/video/generate-video) with the audio sent as reference audio.

## Models
| Model | Maker | Modes | Credits | Details |
| --- | --- | --- | --- | --- |
| [minimax-h3](https://nodaro.ai/docs/models/video/minimax-h3) | MiniMax | Image to video, Text to video | from 230 | MiniMax Hailuo 3 — premium multimodal tier: first/last frame + image/video/audio references, native audio, 2K (default) or 768P output, 4-15s per-second pricing. |
| [Kling Avatar Standard](https://nodaro.ai/docs/models/video/kling-avatar-standard) | Kuaishou | Lip sync | 280 | Lip-sync a still portrait to driving audio. Standard quality. |
| [Kling Avatar Pro](https://nodaro.ai/docs/models/video/kling-avatar-pro) | Kuaishou | Lip sync | 560 | Premium lip-sync — better mouth shape and timing. |
| [Seedance 2](https://nodaro.ai/docs/models/video/seedance-2) | Bytedance | Image to video, Text to video | from 230 | Seedance 2 — premium tier with native audio. Per-second pricing by resolution. |
| [Seedance 2 Fast](https://nodaro.ai/docs/models/video/seedance-2-fast) | Bytedance | Image to video, Text to video | from 180 | Cheaper / quicker Seedance 2 tier. |
| [Seedance 2 Mini](https://nodaro.ai/docs/models/video/seedance-2-mini) | Bytedance | Image to video, Text to video | from 120 | Budget Seedance 2 tier — 480p/720p only, per-second pricing by resolution. |
| [Seedance 2.5](https://nodaro.ai/docs/models/video/seedance-2-5) | Bytedance | Image to video, Text to video | from 340 | Seedance 2.5 — up to 30s in one shot, native audio, wide multimodal references. 480p/720p/1080p. |
| [OmniHuman 1.5](https://nodaro.ai/docs/models/video/omnihuman-1-5) | Bytedance | Lip sync | from 1020 | Premium prompt-directed talking avatar from a still image + audio. 720p / 1080p, up to 60s. People, pets, anime. |
| [InfiniTalk](https://nodaro.ai/docs/models/video/infinitalk) | InfiniTalk | Lip sync | from 110 | Audio-driven talking-head from a still image. 480p / 720p. |
| [Sync Lipsync v3](https://nodaro.ai/docs/models/video/sync-lipsync-v3) | Sync | Lip sync | from 1000 | Dub existing footage — re-syncs lips to a new audio track. Video input, billed per second. |
| [Volcengine Lip Sync](https://nodaro.ai/docs/models/video/volcengine-lip-sync) | Volcengine | Lip sync | from 300 | Video-to-video AI dubbing — re-syncs lips to a new vocal track. Multi-speaker (scene detection + speaker ID) in basic mode. Video input, billed per second. |

The **Provider** list also offers HeyGen Lipsync Precision and Lipsync 2 Pro for dubbing, and LatentSync, which is best for singing, Wav2Lip, the fastest and cheapest, Video-Retalking, with built-in face enhancement, and SadTalker. Hailuo 3 (minimax-h3) is available through the API, not in the **Provider** list.

## Audio length

| Model | Longest audio |
| --- | --- |
| Kling Avatar, Kling Avatar Pro | 5 minutes |
| Volcengine Lip Sync | 5 minutes |
| HeyGen Lipsync Precision, Lipsync 2 Pro, Sync Lipsync v3 | 5 minutes, as the reservation limit |
| OmniHuman 1.5 | 60 seconds |
| InfiniTalk | 15 seconds |
| Seedance 2 Fast | 15.2 seconds per clip |
| Seedance 2.5 | 30 seconds per clip |

On Kling Avatar, InfiniTalk, OmniHuman 1.5 and Volcengine Lip Sync, audio longer than the limit is trimmed before the run. On HeyGen Lipsync Precision, Lipsync 2 Pro and Sync Lipsync v3, 5 minutes is the credit reservation limit, not a trim: longer clips reserve at the 5-minute tier. Long runs on Kling Avatar and Volcengine Lip Sync can take tens of minutes, and the editor waits up to about an hour.

## Credits
Most models bill per second, rounded up to the next length tier. The credit chip on the node updates when the audio is connected, because the node measures its length. When the length is unknown, the 5-minute tier is reserved. Credits beyond the real cost are refunded when the video is ready.

| Model | 15 s | 30 s | 1 min | 2 min | 5 min |
| --- | ---: | ---: | ---: | ---: | ---: |
| Kling Avatar (720p) | 300 | 600 | 1,200 | 2,400 | 6,000 |
| Kling Avatar Pro (1080p) | 600 | 1,200 | 2,400 | 4,800 | 12,000 |
| OmniHuman 1.5 | 1,020 | 2,030 | 4,050 | — | — |
| Volcengine Lip Sync | 300 | 600 | 1,200 | 2,400 | 6,000 |
| HeyGen Lipsync Precision | 510 | 1,010 | 2,010 | 4,010 | 10,010 |
| Lipsync 2 Pro | 630 | 1,250 | 2,500 | 5,000 | 12,490 |
| Sync Lipsync v3 | 1,000 | 2,000 | 4,000 | 8,000 | 20,000 |

- **OmniHuman 1.5** takes at most 60 seconds of audio, so only the 15-second, 30-second and 1-minute tiers apply. Its resolution does not change the price.
- **InfiniTalk** has a flat price per run: 110 credits at 480p and 420 at 720p.
- **The Seedance models** are priced per second, the same way as in [Generate Video](https://nodaro.ai/docs/nodes/video/generate-video).

## Tips
- **Use a clear, front-facing portrait.** Face quality matters more than resolution: a sharp 720p photo works better than a blurry 4K one.
- **Clean the audio first.** Speech without music or noise syncs best. Use [Voice Extractor](https://nodaro.ai/docs/nodes/audio/voice-extractor) to isolate the voice.
- **Add small motions.** A motion prompt such as "slight head nods" adds realism.
- **Dub in several languages.** Translate the speech with [Dubbing](https://nodaro.ai/docs/nodes/audio/dubbing) or a new voiceover, then re-sync the lips with a dubbing model.
- **Short clips are cheap.** Per-second pricing means a short line costs little; watch the credit chip after you connect the audio.

## From the API
When you call Sync Lipsync v3 or Volcengine Lip Sync from the API, SDK or MCP, pass `audioDurationSec`, the length of the output in seconds. Without it, the run is billed at the 5-minute tier with no refund: 20,000 credits on Sync Lipsync v3 and 6,000 on Volcengine Lip Sync. The editor measures the audio for you. See [Run a single node](https://nodaro.ai/docs/developers/api/nodes).

## Frequently asked questions

### What does the Lip Sync node need?

An audio track with speech, and either a portrait image or a video, depending on the model. Portrait models make a new talking-head video. Dubbing models, such as Sync Lipsync v3 and Volcengine Lip Sync, re-sync the lips of an existing video to new audio.

### Which Lip Sync model should I choose?

Kling Avatar Pro gives the best mouth shape for a portrait. InfiniTalk gives resolution control. OmniHuman 1.5 follows a motion prompt and animates people, pets and anime. To dub an existing video, Volcengine Lip Sync is the cheapest modern option, and the only one that handles several speakers.

### How many credits does Lip Sync cost?

Most models bill per second of audio, rounded up to a length tier of 15 seconds, 30 seconds, 1, 2 or 5 minutes. For example, Kling Avatar costs 300 credits for 15 seconds and Volcengine Lip Sync 1,200 credits for one minute. InfiniTalk has a flat price per run.

### How long can the audio be?

Up to 5 minutes on most models. InfiniTalk takes 15 seconds and OmniHuman 1.5 takes 60 seconds; longer audio is trimmed on those models.

### How do I make a talking head from text?

Connect a Text to Speech node to the Audio input and a portrait to the Portrait input. The voice track then drives the lips.