You can now make a video with your face and your voice without ever turning on a camera: you provide a few photos and a short audio clip, write what you want to say, and the artificial intelligence hands back a finished video. For the small business owner who freezes up when it's time to film, it sounds like the perfect solution. Sometimes it is. In other cases, it's the fastest way to lose the trust of people who were already customers. Below: where it works, where it doesn't, and the rules almost nobody tells you about.
What's happening
Entrepreneur Rony Meisler shared in his newsletter, in October 2026, that he made a video of the partners dancing at a gas station none of them had ever visited, and that he used an AI clone of himself in videos that got thousands of likes. The tool he showcases takes photos of a person, a clip of their voice, and assembles the video with movement, scenery, and mouth movements synced to the speech.
He's not alone. Two examples help show the scale of this:
- Granny Spills, a grandmother in a pink suit who dishes out cheeky advice, was created entirely by AI by two content creators from New York. According to the American press, the account, launched in July 2025, passed 1 million followers in about three weeks.
- Lu, from Magazine Luiza, started out explaining products on the store's website and is now named by the Virtual Humans website as the most-followed virtual influencer in the world.
Virtual brand characters aren't new. What's changed is the cost: what used to require a studio, a scriptwriter, and weeks of production now fits into an afternoon and a monthly tool subscription.
Three ways to use it, from safest to riskiest
Almost everything a business does with AI video falls into one of these three groups. The difference between them is what the customer believes they're seeing.
- Product and store in motion, no person. The sneaker spinning, the storefront lit by late afternoon light, the dish coming out of the kitchen. No one feels deceived, because no one is pretending to be someone. It's the safest use and the one that pays off most for retail.
- A declared brand character. An invented figure everyone knows belongs to the company, like Lu. It works when the character has its own personality and shows up consistently, and when the brand never pretends it's a flesh-and-blood employee.
- The owner's clone speaking on their behalf. Your face and your voice saying things you never recorded. It's the most powerful and the most delicate option: the customer thinks they're seeing you, and trust rests entirely on that.
Where it works
- Answering the question that comes in every day on WhatsApp. "Do you deliver to this neighborhood?", "What are your Saturday hours?", "Is there parking?". A 10- to 15-second video per question, which you send as a ready-made reply. The information is yours, the voice is yours, and the customer gets exactly what they asked for.
- Testing ads before paying. Three versions of the same video, each starting a different way. Put a small amount of money behind all three for two or three days and invest in the one that holds people's attention longest.
- Talking to people who don't speak Portuguese. The same video in Spanish or English, with your voice, for businesses serving tourists. The translation needs to be checked by someone who speaks the language.
- Keeping up a weekly posting rhythm. When there's no time to film, the video still goes out, with a script you approved.
Where it falls apart
- A customer testimonial that doesn't exist. An invented face saying "I bought it and loved it" is deceptive advertising, and Brazil's Consumer Protection Code bans advertising capable of misleading consumers (Article 37). Beyond the legal risk, a single suspicious comment can cost an entire profile its credibility.
- Services where trust lives in the face. Medical practices, clinics, law firms, accounting firms. If a patient discovers that the doctor they "saw" explaining a treatment was a composite, the next question is what else isn't real.
- A promise you wouldn't make live. AI delivers anything you write with the same confidence. If the script includes a number, a deadline, or a result you wouldn't stand behind face to face, it shouldn't go out just because it became easy to produce.
- Using a face, voice, or scene that isn't yours. Putting your team inside a famous movie, imitating an artist's voice, or using an employee's face without authorization. Use of someone's image and voice requires that person's consent (Civil Code, Article 20), and movie scenes belong to whoever made the movie.
The rules almost nobody tells you about
- Meta requires an AI disclosure. Since February 2024, Instagram and Facebook have required anyone posting realistic video or realistic audio that was digitally created or altered to use the AI labeling tool, and the company says it may penalize those who don't. The label appears as "AI info" on the post. There's no proof that a proper label hurts reach; hiding it is what can cause problems.
- Written consent from whoever's face and voice are used. This applies to the owner, to partners, and especially to employees. Also agree in advance on what happens to the clone if the person leaves the company.
- Say it's AI when it matters. For a product video, a label is enough. For a video where "you" are speaking to the customer, a caption line ("video made with AI using my voice") avoids the feeling of being tricked and tends to spark curiosity rather than rejection.
What we did at our agency
On our promotional video production page there's an agency ad featuring a spokesperson created entirely with AI: eight seconds, in an office with our logo on the wall, with music. She isn't a member of our team and doesn't exist outside the video. That's why the video is labeled on the page as "AI-created spokesperson," alongside two reels whose scenes were also AI-generated.
What that experience taught us:
- An invented character is simpler than a clone. There's no third party's consent to secure, no risk of someone thinking they talked to a real person, and the brand can swap the character out whenever it wants.
- Short video works best. At eight to fifteen seconds, synced speech is convincing. At a full minute, small flaws in expression start to show.
- AI doesn't know what to say. The good script came from the real question customers actually ask. The tool handles the visuals; the message is still the job of someone who knows the business.
How to get started in a week
- Gather the five questions that come up most on your WhatsApp or at the counter.
- Write an answer of up to 15 seconds for each one, with an opening line that already states the topic.
- Choose the format: product with no person, brand character, or your own clone. If it's the clone, first record a real video of yourself, so your audience knows your actual face.
- Generate, review, and label. Watch it on your phone, with sound and without, and turn on the AI disclosure when publishing.
- Measure for two weeks: how many people watched to the end and how many messaged you afterward. Keep the format that generated conversation, not just the one that got views.
To understand why short video sells better than photos, read our short video guide. And for the most common mistakes in AI production, like odd hands, garbled text, and brand names showing up by accident, the post on AI advertising video covers what's gone wrong for us already.
What this means for your business
Showing up every week no longer depends on a camera, good lighting, and nerve. That's good news for anyone who has something to say but never had time to film. But the question that decides whether it's worth it isn't technical: does your customer buy from you because they trust you? If the answer is yes, use AI to showcase products, answer questions, and test ads, and save your real face for the moments where it actually makes a difference.
If you'd like help putting these videos together, from script to labeling, our team produces AI promotional videos for small businesses. And if you're still unsure about the format, our piece on what a promotional video is helps separate what actually sells from what just introduces the company.
Sources
- Rony Meisler, newsletter "Você sabia que isso existe?" (10/09/2026), where we first saw this topic.
- Meta, "Labeling AI-Generated Images on Facebook, Instagram and Threads" (02/06/2024).
- Coverage of Granny Spills: AOL ("AI Influencers Are Coming For Your Feeds") and South China Morning Post.
- Showmetech and Shopify Brasil, on Magalu's Lu and the Virtual Humans ranking.
- Civil Code (Law 10,406/2002), Article 20; Consumer Protection Code (Law 8,078/1990), Article 37.
Frequently asked questions
Can I make a video with my own face and voice using AI?
Yes. Today's tools can take a handful of your photos and a short clip of your voice to build a video with motion, a background, and lip movements synced to the speech. The results are most convincing in short clips, around 8 to 15 seconds.
Do I have to disclose on Instagram that a video was made with AI?
Yes, whenever the video or audio looks or sounds realistic. Since February 2024, Meta has required anyone posting realistic video or audio that was digitally created or altered to use its AI-label tool, and says it may penalize accounts that skip it.
Can I create customer testimonials using AI?
You shouldn't. A made-up customer praising your product counts as deceptive advertising, which Brazil's Consumer Protection Code bans under Article 37. Use AI to showcase the product and answer questions, not to fake customers.
Can I use an employee's face in an AI-generated video?
Only with their written consent, since using someone's image and voice requires authorization (Civil Code, Article 20). It's also worth spelling out what happens to that video, and to the clone, if the person later leaves the company.


