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If lip sync video generation isn’t working, insufficient usage may be the cause.

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Lip sync feature characteristics

Lip sync is an advanced feature that precisely syncs lip movements to audio, consuming very high usage.
  • Plus plan monthly usage allows maximum approximately 111 seconds of generation
  • Very limited use with Free plan daily free usage
※ You can check the available usage for each feature in [Maximum usage by major model] on the payment page.

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Alternatives available with daily free usage

If you use the following method instead of lip sync, it’s available within daily free usage.
  1. Generate narration (voice) and video (using basic model) separately in Carat.
  2. Merge the narration and video in Carat.
※ This method doesn’t sync lip movements precisely like lip sync, but consumes less usage and is fully available within daily free usage.