The only lip sync model that automatically extends your video when audio is longer. No trimming, no re-editing — Kling's AI seamlessly generates extra footage to match your audio from start to finish.
Real examples generated with Kling Lip Sync (selected from database, excluding paid users).
AI Model
Kling Lip Sync
AI Model
Kling Lip Sync
AI Model
Kling Lip Sync
AI Model
Kling Lip Sync
The smarter way to lip sync when your audio doesn't fit your video
When your audio runs longer than your video, Kling automatically generates natural-looking additional footage — no manual work required.
Forget about trimming audio or looping video manually. Kling handles the entire synchronization pipeline end-to-end with a single click.
Perfect for podcasts, music tracks, narrations, and any content where the audio is longer than the source video clip.
Kling analyzes the full duration and phoneme structure of your audio, including sections that extend beyond the original video length.
When audio exceeds the video length, Kling's generative AI creates additional video frames that look natural and consistent with the original footage — faces, backgrounds, and motion included.
The model then applies precise lip sync across both the original and AI-extended frames, delivering a seamless result from beginning to end.
💡 Pro Tip: Kling works best when your source video has a clearly visible face and consistent lighting. The AI extension will match the visual style of the original footage.
Any time your audio runs longer than your video, Kling is the right choice
Turn podcast audio into talking-head videos without worrying about video length
Sync a full song to a shorter video clip — Kling extends the footage automatically
Create product spokesperson videos with longer scripts from shorter source clips
Produce narrated educational or explainer content from brief video assets
Compare all available AI lip sync models side by side
Compare All Models →Stop trimming audio and looping clips manually. Upload your video and audio, pick Kling Lip Sync, and let AI generate a perfectly synced result — no matter the length.