How to Make an AI Avatar Video: Step-by-Step Guide
To make an AI avatar video, record a short selfie video or upload clear photos of your face, record your voice, confirm you have consent and save the avatar. Then write a short script, pick the avatar in a video tool and render. In Infinall AI this is a Pro feature: the selfie records for 6 seconds and the voice needs at least 20 seconds.
Checked October 2026. Sources are listed at the end of the page.
An AI avatar video shows a presenter that looks and sounds like you saying a script you typed, without filming each take. It is useful for product explainers, ad hooks, onboarding clips and short social videos you update often. Most tools follow the same pattern: capture your face, capture your voice, confirm consent, save the avatar, then use it in as many videos as you like. This guide covers each step in a tool-neutral way, then shows how to do it in Infinall AI, where avatars live in the Pro video composer and you see the price before anything renders.
| Question | Infinall AI | HeyGen |
|---|---|---|
| Who can make an avatar | Pro only. Free accounts see an upgrade prompt | The Free plan includes one custom video avatar |
| Free plan | 1,000 credits every month, no card, but no video | 3 watermarked videos per month, each up to 1 minute |
| Paid price | Pro: $10 for the first month, then $30 a month or $299 a year | Creator: $29/month, or $24/month paid annually |
| Face input | A 6 second selfie, or up to 6 photos or one video | See the vendor pricing page |
| Video length | 1 to 180 seconds | Up to 30 minutes on Pro, 60 minutes on Business |
| Other jobs in the same place | Images, motion videos, copy, Ad Spy and a posting calendar | Translation with lip sync, deck to video, captions |
How to Make an AI Avatar Video: Step-by-Step Guide
Decide what the video is for
Pick one job for the video: a hook for an ad, a product explainer, a testimonial style clip or a welcome message. Decide the length and the shape before you start, for example a vertical video for Reels or Stories. A clear goal keeps the script short and the avatar on topic.
Capture your face
Record a short selfie video in good, even light, looking straight at the camera and then turning your head slowly to each side. If you prefer, upload a few clear, front facing photos taken from slightly different angles. Avoid sunglasses, hats, heavy shadows and photos with other people in them.
Record your voice
Read a few paragraphs at your normal pace in a quiet room, with the microphone at the same distance throughout. Speak the way you would to a customer, because a flat reading gives a flat avatar. In Infinall AI a recorded voice for an avatar needs at least 20 seconds, and 40 seconds or more is better.
Confirm consent and save the avatar
Give the avatar a clear name and confirm that the face and voice are yours or that you have the person's permission. Responsible tools will not save an avatar without this step. Never make an avatar of someone else without their written agreement.
Write a short script
Write the words the avatar will say, one idea per sentence. Open with the problem or the offer in the first line, then give one reason to believe it and one clear call to action. Read it aloud and cut anything you would not say in person.
Pick the avatar and render
In your video tool, choose the saved avatar, paste or describe the script, set the length and shape, and start the render. Check the price or credit cost before you confirm. Some tools let you make several versions at once so you can compare them.
Review, fix and publish
Watch the result with the sound on and off. Check that the lips match the words, the face stays consistent and the brand name is said correctly. Send a change for any scene that is off, then download the final file or schedule it.
How to make an AI avatar video in Infinall AI
Video is part of the Pro plan. Open Video mode, press the plus button in the composer (Add files and advanced video settings) and press Create avatar. The Avatar and voice window opens on Create my avatar, a three step guide:
- Face: press Use camera, put your face in the oval and press Start recording. Follow the prompts to look straight ahead, then turn slowly left and right. It stops by itself after 6 seconds. Or press Upload photos or a video and pick up to 6 photos, or one video.
- Voice: read the text on screen. A recorded voice needs at least 20 seconds, and 40 seconds or more is better.
- Save: type a name of up to 80 characters, tick the consent box and press Save avatar. It takes about a minute.
The new avatar is picked for your next video. Choose a model listed under Works with your avatar, turn on Lip sync if you want the avatar to speak in your voice with matched lips, describe the video and press Create video. Infinall plans the scenes, shows a storyboard you can edit and then a price. Nothing renders until you press Approve & render.
Tips for a better avatar
- Light your face from the front with soft, even light. Hard shadows and backlight make the likeness weaker.
- Turn your head slowly during the selfie so the tool sees each angle clearly.
- Use the avatar format for a presenter talking straight to the camera. The ugc, testimonial and interview formats also show a visible person.
- Keep scripts short. Each scene in Infinall AI is at most 8 seconds, so write one idea per scene.
- Make several versions of the same script and keep the one where the face and voice look most natural. You can make 1 to 20 versions at once.
- The app does not promise an exact match to your face, so check the preview before you use the avatar in an ad.
Common mistakes
- Using a photo with more than one face. Infinall asks you to press the face that is you; other tools may pick the wrong person.
- Stopping the voice recording too early. Short samples give a voice that sounds less like you.
- Forgetting the consent box. You cannot save an avatar without it.
- Picking a model that cannot use a real face. In Infinall AI the app switches you to one that can and says so, with an Undo.
- Writing a long, formal script. Avatars sound most natural reading short, spoken sentences.
Free vs Pro, and when another tool is better
Infinall AI Free gives 1,000 credits every month with no card, which covers images, copy and chat, but not video or avatars. Pro costs $10 for the first month, then $30 a month or $299 a year (India: Rs 999 first month, then Rs 2,899 a month or Rs 33,999 a year) and gives 3,000 credits a month. Making an avatar uses credits for the AI work, and you see the price of each video before you confirm.
If your main need is long training videos, translating a presenter into many languages or turning slide decks into avatar videos, a specialist tool such as HeyGen is the better fit: its pricing page lists videos of up to 30 minutes on Pro and a free plan with 3 watermarked videos a month. Some App Store reviewers say HeyGen's credit use is unclear and has no running tally. Infinall AI suits short marketing videos made from your saved brand that go straight to your posting calendar.
Frequently asked questions
Can I make an AI avatar video for free?
Not in Infinall AI: avatars and video are Pro only. HeyGen's pricing page lists a free plan with 3 watermarked videos per month, each up to 1 minute, and one custom video avatar.
How long does it take to make an avatar?
In Infinall AI the selfie records for 6 seconds, the voice needs at least 20 seconds, and saving the avatar takes about a minute.
Can I make an avatar of someone else?
Only with their permission. Infinall AI asks you to tick a consent box confirming the face and voice are yours or that you have permission, and will not save the avatar without it.
Are my photos kept?
When you make an avatar from photos in Infinall AI, the photos are used to make a presenter face and are not kept. The saved avatar is kept until you delete it.
How long can an avatar video be?
An Infinall AI video can be 1 to 180 seconds long, which suits ads and social clips. For longer videos, a specialist avatar tool is a better choice.
Sources and checks
Every price, rating and number on this page comes from the source pages below, checked October 2026. Prices and plans change often, so confirm on the vendor's own page before you buy.
- Infinall AI docs: Avatars, checked October 2026
- Infinall AI docs: Voice, checked October 2026
- Infinall AI docs: Length, shape, quality and versions, checked October 2026
- Infinall AI plans and prices, checked October 2026
- HeyGen pricing page, checked October 2026
- HeyGen on the App Store, checked October 2026