InfiniteTalk solves a very specific problem extremely well: making a still photograph speak. Give it a portrait and an audio recording, and it animates the face so the lips, jaw, and expressions follow the sound — no filming, no actor, no animation rig. It is the fastest route on Flux 3 AI from a voice track to a presentable talking-head video.
Operation in the Create studio is deliberately simple. The image you upload defines the speaker; the audio file drives the performance. Style presets let you nudge the overall treatment, and because generation happens in the cloud, a laptop with a browser is all the hardware required.
Finished videos render at 720p or 1080p in 16:9 or 9:16, covering both a landscape explainer and a vertical short. A practical tip: record clean, close-mic’d audio — the clearer the speech, the more convincing the sync. For animating a full body or scene rather than a speaking face, compare OmniHuman 1.5 on the related pages below.
See what's possible on Flux 3 AI
Sample generations from the platform — write your own prompt to see what InfiniteTalk does with it.
InfiniteTalk vs similar AI video models
Specs from the live catalog — every model below is available on the same account.
| Spec | InfiniteTalk | OmniHuman 1.5 | VolcEngine Lip-sync |
|---|---|---|---|
| Max clip length | 8s | 8s | 8s |
| Durations | 4s, 6s, 8s | 4s, 6s, 8s | 4s, 6s, 8s |
| Resolutions | 720p · 1080p | 720p · 1080p | 720p · 1080p |
| Aspect ratios | 2 | 2 | 2 |
| Audio | |||
| Image to video | |||
| Reference images | up to 1 | up to 1 | up to 1 |
| Keyframes | |||
| Negative prompt |
Capabilities reflect what each model supports on Flux 3 AI today.
What makes InfiniteTalk stand out
Audio-driven animation
Your recording controls the performance — InfiniteTalk times mouth shapes and facial motion to the speech itself.
One photo is enough
No video footage required. A single clear portrait becomes the on-screen speaker for the entire clip.
Any voice source
Use your own narration, a teammate’s recording, or TTS output — if it is an audio file, it can drive the video.
Landscape or vertical
Render in 16:9 for course platforms and websites, or 9:16 for Reels, Shorts, and TikTok presenters.
HD output
Clips are produced at 720p or 1080p, sharp enough for professional explainers and spokesperson videos.
Popular use cases
Why creators run InfiniteTalk on Flux 3 AI
- Talking-head syncs, avatar renders, and video generators all live under one account — no per-model subscriptions.
- Free starter credits cover your first InfiniteTalk clip before you commit to a plan.
- Compare InfiniteTalk against OmniHuman 1.5 on the same portrait without switching platforms.
InfiniteTalk specs & capabilities
Output
- Clip duration4, 6, 8 seconds
- Resolutions720p · 1080p
- Aspect ratios16:9 · 9:16
- Generation modesSpeech to Video
Controls
- Image to video (start frame)
- Reference images
- First & last frame keyframes
- Audio generation
- Negative prompt
- Video input / editing
- Extend video
InfiniteTalk prompt examples
Copy one as a starting point, or send it straight to the Create studio.
“A friendly product manager delivers a warm welcome — “Hi, I’m Maya, let me show you around the dashboard” — with a smile and small natural head nods”
A conversational onboarding read that tests everyday speech sync
“An enthusiastic history teacher explains the fall of Rome, expressive eyebrows, deliberate pauses landing on key dates, steady eye contact held with the camera throughout”
Longer educational narration with emphatic, paced delivery
“A calm meditation guide whispers a breathing exercise, slow soft mouth movements, relaxed shoulders, gentle blinks between phrases, serene and unhurried presence”
Tests subtle low-energy sync where tiny mouth errors would show
Create with InfiniteTalk in three steps
Describe your idea
Write a prompt — the more specific the scene, motion, and style, the better InfiniteTalk performs.
Pick InfiniteTalk & settings
Choose duration, resolution, and aspect ratio. The studio shows the exact credit cost before you generate.
Generate & download
InfiniteTalk renders in the cloud — track progress in your library, then download watermark-free or share with a link.
InfiniteTalk questions, answered
What is InfiniteTalk?
InfiniteTalk is an audio-driven talking-head model: it takes one photo and one audio file and produces a video of that person speaking the audio, with synchronized lip and facial movement. It runs entirely in the browser on Flux 3 AI.
How do I make a photo talk with AI?
On Flux 3 AI, select InfiniteTalk in the Create studio, upload a portrait, attach your audio file, and generate. The model maps the speech onto the face automatically — no keyframing or editing skills needed.
What audio can drive an InfiniteTalk video?
Any speech recording works: voice memos, studio narration, or text-to-speech exports. Clear audio with minimal background noise produces the most accurate lip synchronization.
What resolution does InfiniteTalk output?
Videos render at 720p or 1080p, in widescreen 16:9 or vertical 9:16 — enough range to serve both a website embed and a phone-first social post from the same source photo.
InfiniteTalk vs OmniHuman 1.5 — what’s the difference?
InfiniteTalk specializes in speech: the audio file is the input that drives the animation. OmniHuman 1.5 is a broader avatar model from ByteDance that animates a person from an image. For pure talking-head work, start with InfiniteTalk; both are on Flux 3 AI, so comparing costs only credits.
Can I use a photo of myself?
Yes — your own portrait with your own recording is the most common use. Only animate people whose likeness you have permission to use, in line with the Flux 3 AI terms of service.
Is InfiniteTalk free to try?
Sign-up includes free credits that work on every enabled model, InfiniteTalk included. Afterwards, credit packs and plans on the pricing page cover continued use, and downloads never carry a watermark.