> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ekly.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Sync Lipsync 3

> Re-sync the lips in a video you already have to a new audio track.

Re-sync the lips in a video you already have to a new audio track. Finds the speaker automatically.

| | |
| - | - |
| Model id | `sync-lipsync-v3-fal` |
| Media | video |
| Submit to | `POST /v1/videos` |
| Price | 8 credits per\_second before discounts |
| Typical time | about 120.0 s |

## Request

**Required:** `prompt`, `audio`, `source_video`\
**Optional:** none

```json theme={null}
{
  "model": "sync-lipsync-v3-fal",
  "prompt": "A slow aerial shot over a misty pine forest at dawn",
  "audio": "asset_…",
  "source_video": "asset_…"
}
```

| Field | Allowed | Default |
| - | - | - |
| `audio` | asset id (up to 1) | |
| `source_video` | asset id (up to 1) | |

Reference inputs take asset ids from [`POST /v1/uploads`](/uploads) or an earlier output's `asset_id`.
Prices and allowed values come from the live catalog; `GET /v1/models/sync-lipsync-v3-fal` is always current.


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