Text to video with AI: six videos you can make from one line
· 5 min read
Text-to-video AI turns a written prompt into a finished video: a script, visuals, a voice and captions. The quality of what comes back depends mostly on the line you type. A good prompt for a short video has three things: who the video is for, the one thing they should take away, and a detail only you know.
Compare these two:
A video about our new feature.
A 45-second video for freelance designers: our invoicing app now chases late payments for you. Mention that our own overdue invoices went from 11 to 2 in the month we tested it.
The second line gives the writer, human or AI, an audience, a claim and a proof point that can't be made up. Everything below starts the same way. Each example has the line to type, what the finished script should do with it, and the format that suits it. The products and numbers are made up; swap in yours.
1. The launch video
Line: "60 seconds for existing customers: you can now export reports straight to Google Sheets. Show the old copy-paste way first."
What the script should do: open on the annoying old way, so the viewer recognises their own afternoon. Show the new way in one continuous take. End with where to find the button. (Our guide to product demo videos goes deeper on showing the result first.)
Format: you on camera for the opening and the ask, the product on screen in the middle. Your face says a person stands behind the change; the screen proves it works.
2. The how-to tip
Line: "30 seconds for new home cooks: how to keep a cut avocado from browning. The trick is pressing the plastic wrap onto the flesh, so no air touches it."
What the script should do: lead with the result ("Half an avocado, still green the next day"), show the one step, and end with something to try tonight.
Format: faceless animation. The idea is the hero here, and an illustration of air touching the surface explains it faster than a close-up of your kitchen counter.
3. The customer story
Line: "60 seconds: how Priya, a wedding photographer, cut her editing time per wedding. Use her before and after numbers."
What the script should do: start with Priya's problem in her words, show the change, and put the numbers in the middle where they carry the story. If you don't have the numbers yet, a good draft leaves a blank like [hours per wedding before] rather than inventing one. Fill it in before you record.
Format: on camera, ideally with Priya recording her own lines. A customer's face does more than any claim you make about them.
4. The myth-buster
Line: "45 seconds for holiday-rental hosts: cutting your price isn't the fastest way to fill off-season dates. Better bedroom photos are. Use our own listing as the example."
What the script should do: state the belief the viewer holds, give one piece of evidence against it (your listing, your numbers), then the alternative and how to do it this week.
Format: either works. On camera if your audience knows you; faceless if the before-and-after photos tell the story.
5. The weekly update
Line: "30 seconds for our community: three things that shipped this week (dark mode, faster search, CSV import) and one thing we broke and fixed."
What the script should do: one scene per item, the most requested thing first, and the broken thing told plainly. People trust a changelog that admits a mistake.
Format: on camera. A person reading the week's news signals that a team is working on the product, which is half the point of a weekly update.
6. The founder story
Line: "90 seconds: why I left my bank job to build a budgeting app for couples. The moment it started was an argument with my partner over a dinner bill."
What the script should do: open on the moment, not the résumé. Spend the middle on what you tried before building anything. End with what the app does today and who it's for.
Format: on camera, with a few of your own photos in the middle (the old desk, the first sketch). Not sure which format fits your idea? See faceless videos vs on camera.
Paste a link instead of a line
If the thing you want to talk about already has a page, such as a product page, a blog post or a changelog, start from the link. A script written from the real page uses the real names, prices and features instead of guessing at them. Add one line of direction on top, like "for new users, focus on the free plan".
Read it aloud before you record
Whatever writes your first draft, read it out loud once. Change any word you wouldn't say to a friend. Cut any sentence you can't say in one breath. Then check the three parts: does the first line make the second worth hearing, does the middle show one idea, and does the end ask for one thing? Our guide on how to write a video script covers each part with examples.
Common questions
What should I type into a text-to-video AI tool?
Type one line with three parts: who the video is for, the single thing they should take away, and a specific detail only you know, such as a number, a name or a result. Add the length and the format if you know them. Vague prompts like "a video about our product" produce generic scripts.
Can AI make a video from a link?
Yes. Many text-to-video tools accept a URL and read the page before writing. This works well for product pages, articles and changelogs, because the script can use real names, prices and features. Add a short direction so the video focuses on one part of the page.
How long should a short video made from text be?
Most short videos for Reels, TikTok and Shorts work at 30 to 60 seconds. At a normal speaking pace that is roughly 75 to 150 words. Go longer only when each extra scene adds a new step or example, not more of the same.
ThreeCut is built around this workflow. You type one line or paste a link, it drafts the hook, the story and the end, timed to your length, and you can change every word before you record your lines on screen or hand them to an AI narrator. New accounts get free credits for a first video, so the quickest test is to take one of the lines above, swap in your own details, and see what comes back.