Short-form video in 2026: the content with the highest ROI (and how AI makes it accessible to your SME)

If you had to stake your entire content budget on a single format in 2026, the data makes it clear: short-form video. It’s not a passing TikTok fad or an agency’s hunch. It’s the format that most brands cite as delivering the highest return on investment, and now, thanks to artificial intelligence, it’s no longer a luxury reserved for large accounts but has become something that an SME can produce every week without breaking the bank.

At Vandelay, we’ve been seeing this for months in the accounts we manage from Barcelona: a reel A well-thought-out 30-second video is more effective than a month-long banner campaign. Let’s see why, what the figures actually show, and how to set up a short-form video system that works for you.

What is short-form video and why will it dominate in 2026?

A short-form video is any vertical audiovisual clip lasting between 15 and 90 seconds, designed to be viewed on a mobile phone and within the feed: the Reels from Instagram and Facebook, TikTok videos, the Shorts YouTube and native LinkedIn video. The key is not just the length, but the context: it’s watched without sound, scrolled past in seconds and competing for attention with hundreds of other clips.

According to the report HubSpot’s State of Marketing 2026, based on a survey of more than 1,500 marketing professionals worldwide, short-form video is the content format that is most marketers they identify as having the highest ROI, ahead of long-form video and streaming live. The three formats at the top of the return list are, in fact, all video-based. It is no coincidence that the same report identifies the website, the blog and SEO as the channel with the highest overall ROI: well-crafted content remains the driving force, and short-form video is currently its most efficient form.

The figures you should have on the table

It is important to distinguish between marketing perceptions and people’s actual behaviour. Here are the sources we have used, along with their origins so that you can verify them:

• It is the format with the highest perceived ROI. HubSpot’s ‘State of Marketing 2026’ ranks it first among content formats in terms of reported return on investment.
• The uptake of video is almost universal. According to Wyzowl’s annual reports, around 91% of companies will be using video as a marketing tool in 2026, compared with 86% in 2024.
• AI is now the norm, not the exception. HubSpot puts the figure at 86% marketers which use AI tools, compared with 41% in 2024 and 67% in 2025. A large proportion of this usage is specifically for content and video creation.
• Investment in AI is paying off. According to the same report, 75% of managers whose organisations have invested in AI state that this investment has generated a positive ROI.

None of these figures suggest that simply posting videos will lead to sales. Correlation does not imply causation: brands that see a return on short-form video are usually also those that have a strategy in place, a clear product and a measurable call to action. The format amplifies what already works; it does not fix a weak value proposition.

Why artificial intelligence is changing the game for SMEs

Until recently, the main obstacle to producing short videos on a consistent basis wasn’t the concept itself, but the production process: scriptwriting, filming, editing, subtitling, voice-overs and creating versions for each platform. That bottleneck is precisely what AI has alleviated. Today, an SME can:

• Creating scripts and hooks based on a brief of a single line, and try out ten variations of the first three words of the video, which are the ones that determine whether someone stays or scrolls past.
• Automatic editing and subtitling, with cuts synchronised to the audio and embedded subtitles, which are essential because most of the video in feed It is consumed silently.
• Reusing a recording into multiple segments: a ten-minute interview is split into eight separate clips for different platforms.
• Adjust the format to the optimal proportions and durations for each sequence without having to re-edit the montage from scratch.

The overall effect is that the cost per finished piece falls significantly. Industry figures point to substantial reductions in the average production cost per minute of video, thanks to AI-powered scriptwriting, editing and voice tools. Don’t take this as a universal figure — it depends very much on each individual workflow — but the trend is clear: producing video on a regular basis now costs a fraction of what it did three years ago.

This is where we draw the line: AI speeds up production, it doesn’t replace human judgement. A mass-produced video, lacking any original idea or voice of its own, stands out as such and has little impact. The winning combination is AI for the mechanical tasks and a human mind for the angle, the humour and the message.

How long should your video be, depending on the platform?

There is no single ‘magic’ duration, but there are ranges that work best on each platform. As a practical guide, based on industry video reports:

• TikTok: The sweet spot is around 21 to 34 seconds.
• YouTube Shorts: It works well for between 30 and 60 seconds.
• LinkedIn: Native videos usually work best when they are between 30 and 90 seconds long.
• Instagram and Facebook Reels: in under a minute, with the hook landing within the first two seconds.

The golden rule isn’t about duration, but about retention: every second must earn the next. A fifteen-second video that’s watched in full is worth more than a sixty-second one that’s abandoned at the five-second mark.

How to set up a short-form video system in your business

Producing a single video won’t make much of a difference; what makes a difference is consistency. Here’s the approach we recommend for getting started without production equipment:

1. Identify three or four key themes. Frequently asked questions from customers, common mistakes in your sector, real-life examples, and the latest news. Every video should cover one of these topics.
2. Record in batches. A one-hour session a month, using your mobile and with good lighting, is enough to provide several weeks’ worth of content if you’ve got your scripts ready.
3. Use AI for repetitive tasks: transcription, subtitles, edits, different versions of the title and adaptation for each network.
4. Always finish with an action. A video without a call to action is just entertainment; with one, it’s marketing. Measure which CTA converts.
5. Check the data every two weeks. Engagement, saves and shares speak louder than the I like it. Repeat what works and scrap what doesn’t.

This approach ties in with something we’ve been discussing on the blog: the AI-powered hyper-personalisation and the social commerce They rely precisely on having enough video content to feed the algorithms and product listings. And if you’re concerned about visibility in AI-powered search engines, remember that video is also raw material for the Generative Engine Optimisation (GEO): Rich, well-structured transcripts help ensure your brand is cited.

Frequently asked questions about short-form video in 2026

Do I need professional recording equipment?

Not to begin with. A recent mobile phone, natural light or an affordable ring light, and a lapel microphone are enough to produce a video that works. The quality of the idea and the hook matters more than the quality of the equipment. Making the leap to professional production only makes sense once you’ve established which topics work.

Can AI generate the videos for me from start to finish?

It can generate scripts, voice-overs, subtitles, cuts and even scenes, but relying solely on synthetic 100% video is often noticeable and fails to connect as well with the audience. What is clear today is that AI boosts your production productivity; what it cannot do is replace your understanding of the customer and your brand judgement.

How many videos should I post each week?

It depends on your capacity, but consistency matters more than volume. It’s better to post two or three videos a week consistently for months than to post fifteen in a single week and then go quiet. Filming in batches and using AI for editing is what makes that pace sustainable.

Are short videos suitable for B2B businesses, or only for B2C?

It works for both. In B2B, LinkedIn has become a key video channel, and formats such as explaining an industry issue or debunking a myth work very well. The tone changes, but the principle — grabbing attention quickly and delivering value — remains the same.

How do I measure whether the short video is delivering a return?

Beyond view counts, look at average retention, saves, shares and, above all, the actions you drive to your website or product page. Link each video campaign to a measurable objective (visits, leads, sales) so as not to confuse reach with results.

If you’ve got this far, you’ve probably already realised that short-form video needs to be part of your strategy. The big news for 2026 isn’t that it works — we already knew that — but that it’s finally affordable to produce it consistently. That’s the real change: the barrier is no longer the budget, but the decision to get started. At Vandelay, we help brands set up this system from start to finish, combining the creative side with the automation that makes it sustainable. If you’d like us to take a look at your situation, drop us a line and we’ll discuss it together.

Sources: HubSpot, State of Marketing 2026; annual compilations of video statistics from Wyzowl and the sector. The figures are taken from the reports cited and may vary depending on the methodology used in each study.