How to Make an AI Video (2026): Step-by-Step Guide

To make an AI video, you describe one shot in a sentence or two (or upload a photo), a video model renders a short clip of 4 to 10 seconds, and then you finish it like any other clip: trim it, add captions or music, and size it for the platform. That is the whole process. The rest of this guide walks through each step with real settings, using ASMRIFY as the worked example. The steps are the same in any AI video generator.

What you need before you start

• One idea that fits one shot. "A paper boat sails down a rain-filled gutter" works. "A day in the life of a sailor" does not: that is a story made of many shots (see how to make long AI videos).
• A free account. Almost every generator asks you to sign up, ASMRIFY included. You do not need a card to start.
• Ten minutes. A clip renders in a few minutes; most of your time goes into the prompt and the finishing.

Step 1: Pick the format

Decide what kind of video you are making before you write anything, because each format starts in a different place.

Format	What you get	Where to start on ASMRIFY
One clip from text	A single 4 to 8-second shot	AI Video Generator or Prompt to Video
An animated photo	Your own image, set in motion	Image to Video
ASMR or satisfying clip	A close-up, sound-first shot	Free AI ASMR Video Generator and its templates
A short story	Several scenes joined, 15 seconds to about 3 minutes	AI Story Video Generator
An edit of a video you have	No AI, just the edit	Trim, resize, captions

If you have no idea yet, roll one in the AI video ideas generator: it picks a niche, a format and an opening hook, and each idea opens in the tool that makes it.

Step 2: Write the prompt

A video prompt is a shot description. The formula that works across models is:

subject + action + setting + camera + light + sound

For example: "A barista pours latte art into a white cup, slow dolly-in, warm morning light through a café window, the hiss of the steam wand and a soft clink of the cup."

Rules that save you wasted renders:

• One action per clip. Two actions in 8 seconds usually means neither finishes.
• Name the camera. Close-up, wide shot, slow dolly-in, handheld, top-down. Models follow camera words well.
• Describe the sound if the model makes audio. Veo 3.1 Lite generates sound with the picture, so "rain on a tin roof, building from a few drops to a steady patter" changes what you hear.
• Leave out on-screen text. Video models still garble letters. Add your words afterwards with Add Text to Video.
• No real people or brands. Describe an original person ("a woman in a yellow raincoat"), not a celebrity, and no logos.

The free AI video prompt generator builds this kind of prompt part by part (subject, action, scene, camera, light, motion, sound) so you can copy it into any model.

Step 3: Choose the model

The model decides the length, the quality and whether there is sound. On ASMRIFY there are two tiers, and the page always tells you which one you are on:

	Free tier	Paid plan
Model	Grok 1.5 (xAI)	Veo 3.1 Lite (Google)
Length	4 seconds	8 seconds
Resolution	480p	720p
Sound	Not promised	Generated with the picture
Watermark	Yes, ASMRIFY	No
Who sees it	Posted to the public gallery	Private to your account

The free tier is a short clip while the weekly free pool lasts, so use it to test an idea, not to publish. If you want to compare other models, AI video models compared lists what Veo, Kling, Grok, Wan and others make today.

Step 4: Generate and review

Press generate and wait a few minutes. When the clip comes back, watch it twice and check four things:

1. Hands and faces. Extra fingers and drifting features are the most common flaws.
2. Physics. Liquids, cloth and collisions should move the way they would on camera.
3. The first and last second. A slow start can be trimmed; an ending that stops mid-motion may need a new render.
4. Stray text. Signs and labels often come out as gibberish.

If something is wrong, change one thing in the prompt and render again. Changing three things at once tells you nothing about which change helped.

Step 5: Finish the clip

A raw AI clip is rarely ready to post. These ASMRIFY edit tools are free with an account, cost no credits and add no watermark (MP4, MOV or WebM up to 50 MB and 3 minutes):

• Trim Video: cut the slow first second; results up to 60 seconds.
• Add Captions to Video: burn in captions you type or an SRT file, for viewers watching on mute. It does not transcribe speech for you.
• Add Music to Video: mix your own track under the clip or replace its sound.
• Resize Video: 9:16, 1:1, 4:5 or 16:9, fitted over a blurred background or cropped to fill.
• Loop Video: repeat a short clip 2 to 5 times, up to 3 minutes.

Step 6: Post it and label it

Vertical 9:16 is the shape for TikTok, Instagram Reels and YouTube Shorts; Shorts can be up to 3 minutes long. Then label the video honestly:

• YouTube requires creators to disclose realistic AI-generated or altered content, and may add a label itself when its systems detect it.
• TikTok requires a label on AI-generated content that shows realistic-looking scenes or people.
• Meta may require an AI label on photorealistic video on Facebook, Instagram and Threads.

YouTube does not ask you to disclose content that is clearly unrealistic, but when a clip could pass for real footage, label it. YouTube says a disclosure alone does not limit a video's audience or its eligibility to earn money.

A worked example

Here is one real clip made on ASMRIFY with Veo 3.1 Lite, with the exact prompt that made it:

Hyper-realistic macro ASMR video of a translucent ruby glass apple being sliced into perfect thin pieces on a black marble board. The razor knife creates crisp crystalline taps before each cut, rainbow caustics scatter across the surface, and tiny glass flakes sparkle in slow motion. Each slice separates cleanly with a satisfying chime and reveals flawless transparent layers. Minimal studio setup, soft rim light, no text, no logos, 4K satisfying loop aesthetic.

Glass apple, Veo 3.1 Lite

Notice the structure: subject (a ruby glass apple), action (sliced into thin pieces), setting (black marble board), light (soft rim light), sound (crystalline taps, a chime on each slice) and two exclusions (no text, no logos). From here the finishing steps would be a trim, a caption with the hook and a loop for a longer post.

FAQ

Can I make an AI video for free?

Yes, with limits. On ASMRIFY a free account gets a short watermarked clip (Grok 1.5, 480p, 4 seconds) while the weekly free pool lasts, and the editing tools are free; other generators give daily or one-time credits, compared in our guide to the best free AI video generators.

Which AI makes the most realistic videos?

There is no single winner: models that generate sound with the picture, such as Google's Veo 3.1 family and Kling, look most real when the prompt names the camera, the light and one simple action.

How long can an AI video be?

A single clip is usually 4 to 10 seconds (some models now reach 15 to 30 seconds); longer videos are several clips joined. ASMRIFY clips are 4 or 8 seconds, and its Studio stories run from 15 seconds to about 3 minutes.

Do I need to label AI videos?

On YouTube and TikTok you must label AI content that looks realistic, and Meta may require a label on photorealistic video; clearly unrealistic or animated content usually needs no disclosure on YouTube.

Can I use an AI video commercially?

It depends on the tool's terms: on ASMRIFY, paid-plan clips have no watermark and are yours to post and monetize, while free-tier clips carry the watermark and go to the public gallery.

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For more detail on the parts above, read how to make realistic AI videos and our comparison of the best free AI video generators.