AI video maker
with voice.
By Yuvraj SinghFounder, LeaxorUpdated
Leaxor is an AI video maker with voice built in, three ways. 13 video models render speech and sound along with the picture. Finished videos come narrated, with captions. And lip sync puts any voice, including yours, on a face. Clips with sound start at $0.20.
Press play with sound on.
One prompt, one line of dialogue
The clip above came from a single prompt on Veo 3.1 Fast, with the line she says written into it in quotes:
“You wrote one sentence. I did the rest.”
The voice and the lip movement both came out of that one render. There's no separate voice track and no syncing step. It runs 4 seconds, holds 8 spoken words, and costs 7 credits ($0.70) at today's rates with sound on.
That ratio is worth remembering. A 4-second clip holds a short sentence, not a paragraph. Write a longer line and the model either rushes it or cuts it off.
Three ways to give an AI video a voice
They solve different problems. The table shows which one fits yours.
| Route | You supply | The voice comes from | Price | Best for |
|---|---|---|---|---|
| The model speaks | A prompt with the line in quotes | The video model itself | From $0.20 | One shot of someone talking: a hook, a reaction, an ad line |
| The pipeline narrates | A topic | OpenAI GPT-4o mini TTS or ElevenLabs Turbo v2.5 or ElevenLabs Multilingual v2 | $1.50–$9.00 per video | A whole narrated video with captions for Shorts, TikTok or Reels |
| Lip sync | A clip or photo of a face, plus audio | Your recording, or a typed line voiced by ElevenLabs | From $0.20 per 10s | Exact words on a face you already have |
Voiceover and captions on a finished video
Give Leaxor a topic and it writes the script, illustrates and animates each scene, records the voiceover and times captions to it. This one is 66 seconds, straight out of the pipeline.
Which voice engine narrates depends on the quality tier. It's read from the same config that runs the pipeline:
| Tier | Narration voice | Price per video |
|---|---|---|
| Affordable | OpenAI GPT-4o mini TTS | $1.50 · 15 credits |
| Standard | ElevenLabs Turbo v2.5 | $3.00 · 30 credits |
| Premium | ElevenLabs Multilingual v2 | $9.00 · 90 credits |
Video models that speak
These 13 models can render a native audio track: dialogue, ambience, footsteps, rain. On some, sound costs nothing extra; on others it adds to the price. Google describes Veo 3.1 as a model for generating video with native audio.
| Model | Lab | Cheapest clip with sound | Sound adds |
|---|---|---|---|
| PixVerse V6 | PixVerse | $0.20 | Nothing |
| Veo 3.1 Lite | $0.30 | $0.10 | |
| Wan 3.0 | Alibaba | $0.30 | Nothing |
| Flux 3 Draft | Black Forest Labs | $0.40 | Nothing |
| Wan 3.0 Prime | Alibaba | $0.40 | Nothing |
| Kling O3 Pro | Kuaishou | $0.50 | $0.10 |
| Kling v3 | Kuaishou | $0.50 | $0.20 |
| Kling v3 Pro | Kuaishou | $0.60 | $0.20 |
| Veo 3.1 Fast | $0.70 | $0.20 | |
| Kling 2.6 Pro | Kuaishou | $0.80 | $0.40 |
| Flux 3 | Black Forest Labs | $1.00 | Nothing |
| Seedance 2.5 | ByteDance | $1.30 | Nothing |
| Veo 3.1 | $1.90 | $0.90 |
Lip sync: any voice, on any face
Lip sync takes a face and a voice track and redraws the mouth to match, leaving the rest of the frame alone. The face can be a clip you made here, footage you upload or, with sync. 3 Avatar, a single still photo.
The voice can be a recording you upload, one you've used before, or a line you type. Typed lines are spoken by ElevenLabs Multilingual v2 and cost 1 credit per 500 characters. Lip sync is priced by the length of the audio, shown here for a 10-second line.
| Model | Maker | 10-second line | Good for |
|---|---|---|---|
| Kling LipSync | Kuaishou | $0.20 | By far the cheapest way to sync a mouth. Bills in 5-second blocks |
| LatentSync | ByteDance | $0.30 | Flat rate up to 40 seconds. Good for a long take on a budget |
| sync. 2 | sync.so | $0.60 | The reference lipsync model. Handles overhangs when audio and video differ |
| VEED Lipsync | VEED | $0.80 | Production-grade mouth shapes, no fuss |
| sync. 2 Pro | sync.so | $1.00 | Keeps facial detail the standard model softens |
| sync. 3 Avatar | sync.so | $1.60 | Starts from one photo, not a video — a still face that talks |
The sync. models come from sync.so; their documentation explains how each one handles audio and video of different lengths.
Writing for a voice
A few habits that make spoken AI video sound less like a robot reading a list:
- Quote the exact line. Put the words in quotation marks inside the prompt, and say who says them and how: “she says, with a small smile”.
- Fit the line to the clip. Our 4-second sample carries 8 words. Budget roughly that, and render longer for longer lines.
- Write for the ear. Short sentences and contractions. If a line is awkward to say out loud, it'll be awkward to hear.
- Disclose realistic voices. Platforms ask for it. YouTube wants realistic synthetic content flagged at upload.
YouTube's rules are in its guide to disclosing AI-generated content. And don't put a real person's voice or face into a video without their permission.
AI video maker with voice FAQ
Can AI make a video with a voice?
Yes, in three ways. Some video models render speech and sound in the same pass as the picture; 13 of Leaxor's 23 clip models can. A finished video from a topic comes with a recorded voiceover and captions. And lip sync takes any voice track and matches a face's mouth to it.
What is the best AI video generator with voiceover?
For a narrated video with captions and no editing, a pipeline that writes, voices and assembles the whole thing beats generating clips and adding audio yourself. Leaxor's finished videos narrate with OpenAI GPT-4o mini TTS on Affordable, ElevenLabs Turbo v2.5 on Standard, ElevenLabs Multilingual v2 on Premium. For a single speaking shot, a model with native audio such as Veo 3.1 Fast is simpler.
How do I add a voiceover to an AI video?
If you're starting from a topic, you don't need to: the finished video arrives narrated and captioned. If you already have a clip with a person in it, use Lip Sync to put a voice on them. Upload a recording, reuse one you've made before, or type the line and have it spoken.
Can I use my own voice?
Yes, for lip sync. Upload a recording of yourself and the model matches the face in your clip to it. Only use a voice you have the right to use, which means your own or one you have permission for.
Is there a free AI video maker with voice?
Not on Leaxor: there's no free tier and no free credits. The cheapest clip with sound is $0.20 on PixVerse V6, lip sync on a 10-second line starts at $0.20, and a narrated finished video starts at $1.50. Credits never expire.
What languages can the voice speak?
Typed lines for lip sync are voiced by ElevenLabs Multilingual v2, which ElevenLabs says supports 29 languages. We haven't tested every one of them, so try a short line before you commit a whole script.
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Give it a voice
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A speaking clip from $0.20, a narrated video from $1.50.
Make a video with voice