Type a sentence into a box, wait about a minute, and you get back a four-second clip. That is the basic promise of Haiper AI, a London-built video generation tool that has quietly become one of the more interesting alternatives to Runway and Pika.
It is not the flashiest name in generative video, and it has no Hollywood partnership to shout about. What it does have is a solid model, a genuinely usable free tier, and a set of editing features that go well beyond “make me a clip of a cat.”
What Is Haiper AI?
Haiper AI is a generative video platform built by Haiper, a startup founded in London in 2021 by three former DeepMind researchers: Yishu Miao, Ziyu Wang and Xiaoyang Zhang. The company raised seed funding in 2022 and opened its video tools to the public in beta in early 2024.
The core product is simple. You describe a scene in words, or upload a still image, and the model generates a short video. Clips typically run two to four seconds on standard settings, though you can extend them. Everything runs in the browser, so there is nothing to install.
What separates it from a dozen similar tools is the editing layer. Haiper does not only generate clips from scratch. It also lets you repaint existing footage, animate still images with control over how much they move, and stretch a scene past its original length.
What You Can Actually Make With It
Text to video
This is the headline feature. You write a prompt, pick an aspect ratio, and choose a model version. Haiper’s 2.0 model handles motion better than its earlier releases, though results still swing wildly depending on the prompt. A description of a slow camera push through a rainy street works far better than asking for a person to walk through a door and pick up a cup.
Short, physical, visual prompts win. Verbs beat adjectives.
Image to video
Upload a photo or illustration, add a motion prompt, and Haiper animates it. This is where the tool earns a lot of its users. Product shots get a subtle parallax drift, character art starts breathing, and old family photos get a gentle push-in. There is a motion magnitude control that decides how much the model is allowed to shift things. Crank it up and faces start melting. Keep it low and you get a tasteful slow pan.
Video repainting
Repainting is the feature most people do not expect. You upload an existing clip, mask a region or describe a change, and Haiper regenerates part of the frame while keeping the original motion intact. Swap a t-shirt colour. Remove a logo. Change the weather in a shot. It is fiddly and imperfect, but for a browser tool you can use for free, it is genuinely unusual.
Haiper AI vs Runway, Pika and Kling
Every video model has a personality, and choosing between them is less about raw quality than about which quirks you can live with.
- Runway Gen-3 — the most polished output and the deepest toolkit, with real editing, inpainting and a mature API. It is also the priciest, and credits vanish faster than you expect.
- Pika — excellent for stylised, bouncy animation and party tricks like inflating or melting objects. Strong social features, less interested in realism.
- Kling — impressive physics and longer clips, particularly good with human movement. Access can be slow and the interface takes more learning.
- Haiper AI — the friendliest free tier, fast generation, and the repainting tool. Quality sits a notch below Runway’s best, but when you are iterating quickly on an idea, that gap rarely matters.
If you need a client-ready shot, you will probably end up in Runway. If you are storyboarding, testing concepts, or making social content on a tight budget, Haiper gets you there for nothing.
Pricing: What the Free Plan Really Gives You
Haiper runs on credits. Free accounts get a daily refresh, watermarked exports, and access to the standard models. That is enough for a handful of clips a day, which makes it one of the more generous free tiers in this space. You can genuinely evaluate the tool without paying anything.
Paid tiers remove the watermark, add credits, and unlock faster queue priority and higher resolution. Pricing sits in the same band as Pika and the cheaper Runway plans, roughly $10 to $30 a month depending on how much generation you need. For anyone producing more than a couple of videos a week, watermark removal alone justifies the entry tier.
Getting Better Results: Practical Habits
Most disappointing AI video comes from asking for too much in one go. A few habits change the output more than any prompt template you can copy.
- Keep prompts under about 30 words and lead with the subject and the camera move.
- Describe one action, not a sequence. Slow aerial push-in on waves hitting a lighthouse at dusk beats a paragraph of plot.
- Generate four or five variations before judging a prompt. The model is non-deterministic and the first roll is rarely the best.
- For image-to-video jobs, start at the lowest motion setting and increase it only if the result looks static.
- Extend clips in short increments rather than asking for one long scene. Quality holds up better.
Where Haiper AI Falls Short
Hands and text remain a problem, as they do everywhere. Long shots drift and lose coherence after a few seconds. Complex physics — water pouring, fabric folding, two people interacting — usually fall apart. There is no timeline editor, so anything resembling real post-production has to happen somewhere else.
The other limitation is ambition. Haiper is not chasing cinematic one-minute sequences the way Sora and Veo are. It is built for short, useful, disposable clips. Judged on that, it does its job well. Judged as a filmmaking tool, it is not there yet, and the roadmap does not obviously suggest it is trying to be.
Who Gets the Most Out of It
Social media managers churning out short-form content will find plenty to like: quick loops, animated stills, and a price that starts at zero. Designers and illustrators can bring static work to life for a portfolio or pitch deck without learning After Effects. Teachers, marketers and product teams get a fast way to turn a slide or a photo into something that moves.
Filmmakers and agencies working to real deadlines should treat Haiper as a sketchpad rather than a camera. Use it to test a shot, sell an idea, or plug a gap in a rough cut, then take the final frame somewhere else.
That is probably the fairest way to think about it. Haiper AI is not trying to replace your editing suite. It is a fast, cheap and surprisingly capable way to turn a thought into motion, and for a lot of people, the motion was always the hard part.