Making a decent video used to mean hiring a crew, renting gear, and waiting weeks for the edit. If you run a small shop or you’re building a brand from your spare room, that was never on the cards.
That’s changed. A handful of Chinese AI video models, with Kling 4.0 the newest of them, can now turn a written idea or a product photo into a short clip in minutes. Here’s how to use them for real marketing work, with no big budget and no editing background.
Why video was always such a headache
Meet Tomás. He’s made up, but he’s a pretty typical small-business owner. He sells handmade leather bags online, and he knows video works. Short clips grab more attention than photos, and Instagram and TikTok push them harder. He’s still never made one, and it comes down to three things.
The first is money. A single polished 30-second ad can easily run into thousands once you pay for people, a location, and editing. At that price, you can’t try five different ideas and see which one lands.
The second is time. Tomás is also packing orders, answering emails, and doing his own books. Planning a shoot, finding a model, and fixing things in post takes days he simply doesn’t have.
The third is skill. Camera work, lighting, sound, and editing are each a craft in their own right. Learning all four just to post a product video is a big ask.
AI video doesn’t make all of that disappear. It does shrink it a lot.
What’s different this year
The big change is that the tools now do more of the work in one go.
Kling 4.0, Kuaishou’s latest model, launched in October 2026. It can generate a single clip up to 30 seconds long, which is enough for a whole ad with a proper beginning and end. Kling also says it generates sound in the same pass, including speech with improved lip sync across more languages and accents.
Two other features matter if you sell physical products. You can feed it reference images and short clips, so your product, logo, or character stays consistent from shot to shot. You can also set keyframes, which are images that pin down key moments, so the video follows the story you planned instead of drifting off somewhere odd. There’s a faster Flash version too, for quick drafts.
The rollout is still settling, so specs and limits may shift. Check the official pages before you build a campaign around any single number.
Kling isn’t the only option. Hailuo from MiniMax, Seedance from ByteDance, Vidu from Shengshu and Wan from Alibaba are all worth a look, and each has its own strengths. Which one suits you depends on the job, which is exactly why you test.
A workflow you can try this afternoon
You don’t need a fancy setup. Here’s roughly what Tomás does.
Start with one sentence. Before opening any tool, he writes down what the video is for. “Show my new tan satchel looking great outdoors” is a useful goal. “Make a cool video” isn’t. A clear goal makes every choice after it easier.
Gather the good stuff. He grabs two or three sharp, well-lit photos of the bag, his logo, and any text he wants on screen. Good input means better output. Blurry or dark photos tend to give you blurry, dark videos.
Draft fast and cheap. For the first few tries, he uses a fast or low-resolution mode. He writes the prompt like he’s briefing a camera operator: what’s in the shot, what happens, where it is, and how the camera moves. For example: “a tan leather satchel swinging gently on a woman’s shoulder as she walks through a sunny park, camera tracking alongside at hip height.” He runs a few versions to see which direction feels right.
Try more than one model. Different models handle the same prompt in different ways. One might nail the movement and another the lighting. A multi-model platform like Nereo is a handy place to start if you’d rather compare a few without signing up for every tool separately. To keep the comparison fair, give each model the same prompt and images, and judge them all against the same checklist. That idea is covered properly in this guide to comparing AI video models fairly.
Polish and export. Once he likes a draft, he switches to a higher-quality setting for the final version. He picks the shape for where it’ll run: vertical for Reels and Shorts, square for feeds, widescreen for his website.
Add the finishing touches. He drops the clip into a simple editor and adds his brand colors, a call to action, and captions. Lots of people scroll with the sound off, so captions really matter.
What AI video is actually good at
Not every kind of video suits AI equally. These tend to work well.
Product showcases. A bottle on a marble counter, a bag swinging on a shoulder, a trainer splashing through a puddle. Short, simple scenes with one clear subject are where AI shines.
Scroll-stoppers. Five to ten seconds built to make someone pause mid-scroll. One strong visual and one idea beat a complicated story every time.
Explainers. If you’ve got a script, lip-synced speech lets a presenter walk through your offer, potentially in several languages. That’s useful if you sell into more than one country.
Seasonal promos. Holiday sales and launches come with tight deadlines. Being able to draft quickly means you catch the moment instead of missing it.
Mistakes that waste credits
Tomás burned through a fair few credits before he worked these out.
The biggest is cramming too much into one prompt. Ask for five things to happen in one clip and you’ll probably get a mess. Keep each clip to one idea and stitch them together afterwards.
The next is skipping reference images. Text alone rarely keeps a product looking exactly right, so give the model something to copy.
Then there are the small details. Hands, text on packaging, and odd background objects are still the weak spots. If something looks off, regenerate it rather than hoping nobody spots it. Sometimes rewording the prompt won’t fix the problem at all, and you need a different approach, such as a better reference image or a simpler shot. That’s explained well in this piece on when better prompts won’t fix the output.
People also forget the rules. Read each platform’s commercial-use terms. Never use someone’s face or voice without permission. And if the platform or the ad network asks you to label AI-made content, do it. Being upfront protects your brand.
Finally, watch out for lookalike sites. Popular model names attract copycat pages. Before you type in card details, make sure you’re on an official site or a trusted partner.
Keeping costs under control
Credits vanish faster than you’d think. A few simple habits help. Draft in the cheapest mode and only upgrade the winners. Keep a short prompt template you can reuse and tweak. Set a cap, say ten test clips per idea, before you pick a favourite. And make the most of free credits when you’re trying a new model.
Most tools start at a modest monthly price. Testing an idea can cost roughly what you’d spend on lunch.
Start small
You don’t need to rip up your marketing plan. Pick one product, write one clear goal, and make one 15-second clip this week. Post it, see how people react, and use what you learn on the next one.
Tomás’s first clip, a satchel swinging through a park, took him about an hour and a handful of credits. It wasn’t perfect, but it outperformed every product photo he’d posted that month.
AI video won’t replace your creativity or your feel for your customers. It just gives you a faster, cheaper way to turn ideas into something people will actually watch. The sooner you try it, the sooner you’ll know what works.
Related: In AI Arms Race, U.S. and China Are Talking, but Neither Is Slowing Down
