Video AI

Generate Video From a Text Prompt

Free AI video generator: make clips from a text prompt or a still image, then stitch them into one finished video with captions and voiceover. No watermarks.

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Generating a clip is the easy part now. The hard part is what comes after: the file lands in your downloads folder at six seconds long, and the thing you are actually making needs a trim, a caption, and four other shots around it.

Chat Octopus generates clips from four to twelve seconds, at 720p or 480p, in the shape you need: 16:9 for YouTube, 9:16 for vertical, 1:1 for a feed post, 21:9 if you want the wide look. Sound comes with the clip unless you ask for silence. What you get back is a plain MP4 with nothing stamped across it.

Twelve seconds is the cap on a single clip, not on what you can make. Describe the sequence you want and Chat Octopus works out the shots it needs, generates them, and stitches them into one video. Independent shots run at the same time, so a batch of cutaways comes back in roughly the time one of them takes. The assembly is the part that actually eats your afternoon, and it happens here rather than in your editor.

Short is not a consolation prize once you know where a shot goes. Four seconds is a B-roll cutaway. Eight seconds is an intro sting, or a background plate sitting behind your title text. And because the clips arrive inside the conversation, you keep working. Trim the first second, add a caption, drop a voiceover over it, then cut it together with the footage you shot yourself.

You do not have to start from a blank prompt. Give Chat Octopus a starting image and it animates from that frame, so your product photo can push in slowly instead of sitting still. Add an end frame and it morphs from the first to the second. Or hand it up to four reference images of a subject and it carries that subject's look into a new scene.

A marketer who needs a product-launch teaser animates the product photo they already have, then lays the logo and voiceover on top without leaving the thread. An editor missing one establishing shot generates a city skyline at dusk instead of buying stock. A creator building a vertical short generates a looping background plate and stacks captions over it.

Be clear about the ceiling. Any single clip maxes out at twelve seconds and 720p. Reference images steady a subject's look across a sequence, but they will not hold a face as still as a continuous take, so a stitched run reads as a set of shots rather than one unbroken scene. Video generation also needs an Apple or Google sign-in: accounts made with an email and password cannot use it, though every other tool still works. If you need a shot you cannot shoot, like a rocket lifting off or ink blooming through water, that is what this is for.

How it works

1

Describe the shot and pick a length from four to twelve seconds

2

Get a 720p MP4 back in the aspect ratio you asked for

3

Trim it, caption it, or cut it into a longer edit in the same chat

Frequently asked questions

Any one clip is four to twelve seconds. Ask for a sequence and Chat Octopus plans the shots, generates them, and stitches them into a single MP4. The twelve seconds is a limit on each shot, not on what you walk away with.

Video generation is only available on accounts created with an Apple or Google sign-in. Accounts created with an email and password cannot use it, though every other tool still works. Signing in with Apple or Google unlocks it.

720p or 480p. You can pick 16:9, 4:3, 1:1, 3:4, 9:16, 21:9, or 9:21, so vertical clips for Reels, Shorts, and TikTok come out correctly framed instead of cropped later.

Yes. Upload a still and it animates from that frame. Add a second image as the end frame and it morphs between the two, or give it up to four reference images of a subject to carry that look into a new scene. One limit worth knowing: an image that looks like it contains a real person gets refused, so this works on products, artwork, and illustrated characters rather than photos of people.

No watermark. The MP4 is clean and ready to drop into an edit. Generation is free during beta.

Yes, as an assembly rather than one continuous render. Chat Octopus works out the shots your script needs, generates them, and cuts them together with captions, music, and voiceover in the same chat. What it will not do is hold one presenter's face across the whole piece, so it suits shot-led videos rather than a talking head reading your words.

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