Learning how to make an AI video is no longer about one tool. It is about choosing the right workflow: describe a shot and let a model generate the footage, hand a script to a tool that assembles the whole video for you, or animate a photo you already have. Pick the wrong workflow and you will waste an afternoon; pick the right one and you can have a finished, watchable video the same day, with no camera, no filming and no editing experience. This guide walks you through all three workflows, step by step, with the tools that do each one best in 2027.
Key takeaways: There are two main ways to make an AI video — prompt-to-clip, where a generative model creates short clips from a text description (Google Veo, Runway, Kling), and script-to-video, where a tool assembles a complete narrated video from your script (Synthesia, Pictory, Renderforest). One AI generation is usually only 5–10 seconds long, so a one-minute video is many clips stitched together, not one prompt. Start with the script, generate the voiceover as a single track so the voice stays consistent, and finish in a real editor. You can make an AI video for free, but free plans cap length, resolution or exports — and prompts alone do not give you copyright over the result, so add your own creative choices.
Table of Contents
How do I make an AI video?
Making an AI video takes five steps, whatever tool you use. First, decide what the video is for — a social clip, an explainer, a product shot, a training video — because that decides which workflow you need. Second, write the script or the shot list. Third, generate the visuals: either prompt a generative model for clips, or hand your script to a script-to-video tool. Fourth, add the voiceover and music. Fifth, edit the pieces into a finished video and export it.
The step most beginners skip is the first one, and it is the one that matters most. A 15-second product clip for social media and a 4-minute training explainer are different jobs that need different tools. The table below sorts them out before you spend anything.
| What you want | Workflow | Best tools |
|---|---|---|
| One beautiful short clip (5–10 seconds) | Prompt-to-clip | Google Veo, Runway, Kling, Pika |
| A finished narrated video from a script | Script-to-video | Synthesia, Pictory, Renderforest |
| A video from a photo you already have | Image-to-video | Google Veo, Runway, Kling, Pika |
| A training or explainer with a presenter | Avatar video | Synthesia, HeyGen, Colossyan |
| A social video from a blog post or article | Article-to-video | Pictory, Renderforest |
Text-to-video vs script-to-video: which workflow do you need?
The phrase “text to video” covers two workflows that behave nothing alike, and mixing them up is the most common way people waste time. Prompt-to-clip tools take one sentence describing one shot — “a golden retriever puppy running through autumn leaves, slow motion” — and generate a few seconds of footage that never existed. The footage looks remarkable, but it is short, silent or nearly silent, and you get one shot at a time.
Script-to-video tools work the other way round. You paste a full script or an article, and the tool splits it into scenes, writes a voiceover, pulls matching stock footage or an avatar presenter, and stacks captions on top. You get a finished, narrated video in a single pass — but the visuals come from stock or avatars, not from your imagination, so it will never look as striking as a generated clip.
Most finished videos combine the two: a few generated clips for the shots that matter, assembled with a script-to-video tool or a normal editor, with one voiceover track holding it together. That is the workflow the step-by-step below follows.
How to make an AI video: the step-by-step workflow
Step 1: Write the script first
Write the script before you open any AI tool. A good rule is one sentence per shot: if your video is 60 seconds long and each clip is 5–10 seconds, you need roughly 8–12 shots, so your script needs 8–12 clear sentences. Write it in plain spoken language — the way you would say it out loud — because a voiceover read from written prose sounds stiff.
Keep the script short. A minute of video is about 130–150 spoken words. If your script is longer, cut it before generating anything, because every extra sentence is another generation, another clip to edit, and another chance for the visuals to drift off-topic.
Step 2: Pick your workflow and your tool
If your video needs original, striking visuals — a product shot, a scene that does not exist, a cinematic opener — use a prompt-to-clip tool. Google Veo is the current default for the best-looking single shot, and it generates picture and synced audio in the same pass. OpenAI Sora was discontinued in April 2026 and is no longer available for new videos — Google Veo and Runway are the current high-end alternatives. Runway is the best choice when you want to direct the camera — its controls let you specify camera moves instead of hoping the model guesses them. Kling is the value option when you need a lot of clips and cost per second matters. Pika is best for short, stylised social clips.
If your video needs to be finished and narrated — a training video, an explainer, a social listicle — use a script-to-video tool. Synthesia is best for explainers that need a presenter on screen, with avatars speaking your script in more than 160 languages. Pictory is best for turning an article you already published into a narrated cutdown. Renderforest is the most complete all-rounder: it generates scenes from your script with a choice of models, adds a voiceover, and includes a built-in editor for timing and captions.
Check the official pages for current capabilities before choosing: Google Veo, OpenAI Sora, Runway, Kling, Pika, Synthesia, Pictory and Renderforest. Model versions, clip lengths and free allowances change often, so confirm them on the tool’s own site rather than trusting a roundup.
Step 3: Generate the clips
For prompt-to-clip tools, write one prompt per shot. A prompt that works has four parts: the subject, the action, the setting, and the camera. For example: “A ceramic coffee mug on a wooden table, steam rising, morning light through a window, slow push-in shot, shallow depth of field.” That gives the model something concrete to render, instead of a vague idea it has to guess at.
Generate each shot separately and expect to regenerate some of them. AI video is unpredictable — a hand may bend the wrong way, a logo may appear where it should not, a face may shift between clips. Budget for two or three attempts per shot, and keep the prompts for the shots that worked, so you can reuse the wording. If you need the same character or product to look identical across shots, start from an image instead of text: upload a photo and ask the tool to animate it, which locks the first frame and keeps the subject consistent. Our guide to Google Veo 3 explains how its image-to-video and first-frame/last-frame options work.
Step 4: Add the voiceover as one track
Generate one voiceover for the whole script, not one clip at a time. A single voiceover track keeps the voice, pace and tone consistent across the video, while per-clip generation drifts — the same voice can sound subtly different in every clip, and the listener notices. Record it yourself if you can: your own voice is more trustworthy than a synthetic one for anything with your name on it. If you use an AI voice, generate the full script in one pass and check the pronunciation of names and numbers before you export.
For the tools, the voice generators in our roundup of the best free AI voice generators cover narration well, and most script-to-video tools include a voiceover as part of the package. Add music last, quietly, underneath the voice — it should support the narration, not compete with it.
Step 5: Edit, caption and export
The last mile is the same whatever tool generated your clips: trim each clip to the sentence it illustrates, set the captions, match the aspect ratio to where the video will live (vertical for TikTok and Reels, horizontal for YouTube), and render. Captions matter more than most beginners think — most social video is watched on mute, so a video without captions loses a large share of its audience before the first second.
For editing, a free editor is enough for most AI videos: CapCut handles the basics well on desktop and mobile, and Canva’s video editor is a good fit if the video is a simple social cut. Our roundup of the best free video editing software in 2027 compares them properly. Export at the highest quality your plan allows, and keep the project file — you will want to re-export in a different aspect ratio sooner than you think.
How to write an AI video prompt that actually works
A good AI video prompt is a shot description, not a wish. The formula is: subject + action + setting + camera + style. “A chef chopping vegetables in a bright kitchen, overhead shot, warm natural light, realistic documentary style” will beat “a nice cooking video” every time, because the model has concrete decisions to make instead of guesses.
Three rules make prompts reliably better. First, one shot per prompt — a prompt that describes a whole scene with a beginning, middle and end will confuse the model, because it only generates a few seconds. Second, name the camera move: “slow push-in”, “static tripod shot”, “drone shot rising” — camera language is the cheapest way to make a clip look professional. Third, add what you do not want only when it keeps appearing: if the model keeps adding text to your frames, add “no text, no watermark” to the prompt. Keep a document of prompts that worked, with the tool and model version beside them, so you can repeat a good result instead of starting from scratch.
Can AI make a video from a photo?
Yes — image-to-video is one of the most reliable ways to make an AI video, because starting from a photo gives you control over the first frame. Upload a product photo, a portrait or a landscape, and the tool animates it: a still product shot becomes a slow rotating shot, a portrait blinks and turns its head, a landscape gains drifting clouds or moving water.
Image-to-video is the best option when consistency matters. If you are making a product video, the product must look the same in every shot, and text-to-video cannot guarantee that — the same mug can come back a different shape in every generation. Starting from one real photo locks the subject, and the AI only adds the motion. It is also the fastest route to a usable result for beginners, because the hardest part of text-to-video — describing a scene well enough to get a good first frame — is already done for you.
Can I make an AI video for free?
Yes, you can make an AI video for free, with real limits. Most tools offer a free tier or free credits: you can generate a handful of clips, try the script-to-video flow, and export a short video — usually with a watermark, a resolution cap, or a monthly credit limit. That is enough to learn the workflow and to make short social clips.
What free plans do not give you is volume or polish. A 60-second video needs 8–12 clips, and a free allowance may cover only two or three generations a day. Watermarks and resolution caps also make free exports unsuitable for client work. The practical approach is to learn on the free tier, then pay for the month you actually need to produce something — most tools are monthly, so you can subscribe for one project and cancel. Check each tool’s official pricing page for the current free allowance, because it changes often, and never build a business routine around a free tier that could shrink without notice. ChatGPT itself can also generate short video clips — see our guide to whether ChatGPT can make videos for what it can and cannot do.
The best AI video generators in 2027 at a glance
| Tool | Best for | Workflow |
|---|---|---|
| Google Veo | The best-looking single shot, with synced audio | Prompt-to-clip, image-to-video |
| OpenAI Sora | Discontinued April 2026 — use Veo or Runway instead | Prompt-to-clip |
| Runway | Directing camera moves | Prompt-to-clip, image-to-video |
| Kling | Volume — many clips at low cost | Prompt-to-clip, image-to-video |
| Pika | Short stylised social clips | Prompt-to-clip |
| Synthesia | Presenter-led explainers and training | Script-to-video, avatars |
| Pictory | Turning articles into narrated videos | Script-to-video |
| Renderforest | Complete videos from a script, with editing | Script-to-video |
| CapCut | Editing and finishing AI clips | Editor |
| Canva | Simple social videos | Script-to-video, editor |
Start with the tool that matches your video type, not the one with the most impressive demo reel. A demo reel shows the best shot a model ever produced; your video will be made of average shots, and the tool that makes average shots easy to edit is the one you will actually finish with.
Do I own the copyright to an AI video?
This is the honest, unsettled part. The US Copyright Office has said that prompts alone do not provide sufficient human control for copyright — typing a sentence and receiving a clip is not the same as authoring a video in the eyes of the law. What is protected is the human creative work around it: your script, your editing choices, the arrangement of clips, the voiceover you wrote or recorded, and any footage you shot yourself.
In practice, that means three things. First, add real human choices: write the script yourself, make deliberate editing decisions, record your own voiceover where it matters. Second, do not rely on an AI video as your only asset for something commercially important without checking the tool’s terms — most tools grant you a licence to use what you generate, but the terms differ, and they can change. Third, keep your source files and prompts, because they are the evidence of the human authorship you did contribute. This is not legal advice, and the rules are still evolving — if a video matters commercially, check the current guidance rather than assuming.
Frequently asked questions
How long can an AI video be?
One AI generation is usually 5–10 seconds long, depending on the tool and model. Longer videos are built from many clips stitched together in an editor, or produced in one pass by a script-to-video tool that assembles stock footage and avatars rather than generating each frame. There is no practical limit on the finished length — only on each individual generation.
What is the best AI video generator in 2027?
It depends on the video. Google Veo produces the best-looking single shot, Google Veo is best for cinematic realism (OpenAI Sora was discontinued in April 2026), Runway is best for directing camera moves, Kling is best for volume at low cost, and Synthesia is best for presenter-led explainers. Pick by the video you need, not by a single “best” ranking.
Can AI add a voiceover to a video?
Yes. Most script-to-video tools generate a voiceover from your script automatically, and standalone AI voice tools can narrate a full script in one pass. Generate the voiceover as a single track for the whole script so the voice stays consistent, and check the pronunciation of names and numbers before exporting.
What is the difference between text-to-video and image-to-video?
Text-to-video starts from words only — you describe a shot and the model creates the footage. Image-to-video starts from a picture you supply, so you control how the first frame looks and the subject stays consistent across shots. Image-to-video is the better choice when a product, person or place must look the same in every shot.
How do I edit an AI video?
Import the generated clips into a video editor, trim each clip to the sentence it illustrates, add one voiceover track, add captions, match the aspect ratio to the platform, and export. CapCut is a good free starting point, and our guide to the best free video editing software compares the options.
Making an AI video is a skill that rewards a good script more than a good tool. Write the script first, pick the workflow that fits the video, generate more clips than you need, and finish in a real editor with captions. Your first video will not be perfect — the clips will be uneven and the voiceover will need a second take — but the second one will be noticeably better, because you will have prompts that worked and a workflow you trust. For more on the tools behind it, browse our best AI picture generators and the rest of the How-To Guides archive on Digital Discoverist.
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