FAL Lip Sync 1.9
FAL Lip Sync 1.9 is the budget tier of FluxoKit's lip sync ladder, resyncing a face video to any audio track you connect in the canvas. It suits simple talking heads and costs from 7 credits for a 5-second clip, billed by duration, on plans starting at $14 per month with no fal.ai account.
Examples
1 generationReal generations with FAL Lip Sync 1.9
Overview
FAL Lip Sync 1.9 drives a connected audio track onto the mouth of a source video, so a talking head lines up with a voiceover it was never filmed for. It is the entry rung of FluxoKit's three-step lip sync ladder, tuned for clean, front-facing footage where the sync problem is simple and the priority is cost per clip.
You feed it two inputs in the browser canvas: the face video and the audio to match. There is no fal.ai account, no queue dashboard, and no per-second billing math to reconcile. A 5-second clip costs from 7 credits, and the run scales with clip length at the provider's per-minute rate.
Lip sync video AI for simple talking heads
The core job is dubbing and voiceover cleanup for straightforward shots: a creator talking to camera, a spokesperson clip, a UGC ad where the script changed after filming. Connect the original video and the new audio, and 1.9 rewrites the mouth to match. It is the cheapest way to test whether a lip sync workflow is worth building before you spend on the higher tiers.
The natural chain is audio first, sync second: generate a voiceover with a text-to-speech model in the same canvas, then route it into FAL Lip Sync 1.9 so the generated speech drives the face. Front-facing, evenly lit footage is where this tier holds up; fast speech and side profiles are the cases the 2.0 and 3.0 rungs exist to handle.
Where FAL Lip Sync 1.9 earns its credits
Volume dubbing is the sweet spot: many short talking-head clips where each one is simple and the total cost has to stay low. At from 7 credits for a 5-second clip, a batch of twenty short syncs stays well inside a starter plan, and every run shows its exact credit cost in your history. When a clip fights the model, move that one up the ladder rather than paying the premium rate on all of them.
FAL Lip Sync 1.9 vs 2.0, 3.0, and ElevenLabs Video Dubbing
The middle rung handles harder sync than 1.9, including quicker speech, at a higher per-clip rate. Move up when 1.9 drifts on a shot.
The top rung is the quality tier for fast speech and side profiles. Use 1.9 for simple heads and 3.0 for the hard cases, not the reverse.
Dubbing translates and revoices a whole video. Lip Sync 1.9 only resyncs the mouth to an audio track you already have; pick by whether you need translation or just alignment.
Capabilities
Video support
Yes
Audio support
Yes
Source video input
Yes
Source audio input
Yes
Lip sync
Yes
Audio-driven lip sync
Yes
Output type
Video
Default duration
5 s
Sync modes
cut_off, loop, bounce, silence, remap
Default sync mode
Cut_off
Parameters and inputs
Each field below shows what the model accepts and the limits to apply.
Parameters
Video
video
- Required
- Yes
- Default
- Not set
- Accepts
- video/*
Audio
audio
- Required
- Yes
- Default
- Not set
- Accepts
- audio/*
Sync Mode
sync_mode
Frequently asked questions
›How much does FAL Lip Sync 1.9 cost per clip?
It costs from 7 credits for a 5-second clip on FluxoKit and scales with clip length at the provider's per-minute rate. Plans start at $14 per month and every run shows its exact credit cost in your history.
›What inputs does FAL Lip Sync 1.9 need?
Two: a source video with a visible face and an audio track to sync to. You connect both in the FluxoKit canvas, and the model rewrites the mouth movement to match the audio.
›When should I use FAL Lip Sync 1.9 instead of 2.0 or 3.0?
Use 1.9 for simple, front-facing talking heads where cost per clip matters most. Step up to 2.0 for quicker speech and to 3.0 for the hardest cases like fast dialogue and side profiles.
›Do I need a fal.ai account to use FAL Lip Sync 1.9?
No. FluxoKit runs it and more than 100 other AI models under one subscription with credit based pricing and a 30-day money-back guarantee.
Start creating
Run FAL Lip Sync 1.9 in your browser. No API key, no provider account.
Cheap, clean lip sync for simple talking heads. One studio, more than 100 AI models.
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