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Short answer
On KreatorFlow, one AI lip sync video can be 4 seconds to 5 minutes long. The video is exactly as long as the audio you add, and it is one continuous take with the same face from start to finish. For anything longer, make it in parts and join them in an editor. KreatorFlow is an official partner of BytePlus, a ByteDance company. As of 1 November 2026.
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How to make a lip sync video longer than 5 minutes
- 1
Split the audio
Cut the voice track or song into parts of up to 5 minutes, at a pause or between verses.
- 2
Use the same photo
Generate every part from the same photo and a similar direction, so the face and framing match.
- 3
Join the parts
Put the parts in order in an editor. Cutting at a pause hides the join.
Lip sync length and price on KreatorFlow
Credits per started second of audio, from the code the studio charges with.
| Audio length | 720p | 1080p |
|---|---|---|
| 4 seconds | 16 credits | 24 credits |
| 10 seconds | 40 credits | 60 credits |
| 30 seconds | 120 credits | 180 credits |
| 1 minute | 240 credits | 360 credits |
| 5 minutes | 1,200 credits | 1,800 credits |
What is the longest AI lip sync video you can make?
On KreatorFlow, one AI lip sync video can be 4 seconds to 5 minutes long. The video is exactly as long as the audio you add, and it is one continuous take with the same face from start to finish. For anything longer, make it in parts and join them in an editor.
The longest take (5 minutes) is 1,200 credits at 720p and 1,800 at 1080p. One minute is 240 credits at 720p.
What is the shortest lip sync video?
4 seconds. Audio shorter than that is charged as 4 seconds, so a one-second line costs the same as a 4-second one.
What fits in one take?
5 minutes covers most everyday uses in one take:
- A short ad, hook or product intro
- Most pop songs, from the first line to the last chorus
- A course lesson or a weekly update
- A full explainer from a cartoon host or a mascot
Tips for long takes
Long takes hold up best when the face has little to fight against.
- A front-facing photo with the mouth fully visible
- Clean audio with little background noise
- Small camera moves, or none, in the direction
- Test 10 to 20 seconds at 720p before the full take
Consent and responsible use
Lip Sync makes the person in a photo say whatever the audio says, so use it only with permission. You must be the person in the photo or have their permission to make them speak, and you must have the right to use the voice and any music. On the website you confirm this the first time you generate with a new photo.
Never use it to deceive: no impersonation, no fake statements from real people, no harassment. Sexual content is never allowed, nor anything involving someone under 18, and photos with nudity or of minors are refused before anything is charged. When you share a realistic talking video of a real person, say that it is AI-generated. To report misuse, write to support@kreatorflow.ai.
Frequently asked questions
How long can an AI lip sync video be?
On KreatorFlow, one AI lip sync video can be 4 seconds to 5 minutes long. The video is exactly as long as the audio you add, and it is one continuous take with the same face from start to finish. For anything longer, make it in parts and join them in an editor.
Can I make a 10-minute lip sync video?
Yes, in parts. Make parts of up to 5 minutes from the same photo and join them in an editor.
Is the video as long as the audio?
Yes. The video matches the length of your voice track or song, and you pay per started second of audio.
Does a longer video cost more per second?
No. Every second costs the same: 4 credits at 720p and 6 at 1080p.
What audio formats work?
MP3 or WAV, or a voice line made in the Audio studio.
