Riffkit

Change the outfit, the person, the place or the product in your video, and keep every shot and beat. Or take a short video that already works and turn it into your own. Riffkit makes short vertical videos with AI-generated people, from inside your assistant: start from a video of your own or one you have the right to use (a video file from your phone or computer, or a TikTok link), from a template in Riffkit's library, or from one written idea. For a video file, the assistant shows Riffkit's upload box in the chat, or gives you a link to a Riffkit page, and you add the video there.

Swap keeps the source video's shots, cuts and timing and changes what you name: the person, a product, or one detail. Adapt keeps what made the source work (its hook, pacing and beats) and tells a new story for your product with new footage. Create writes an original video from your idea, with no source video.

You can use the characters and products in your Riffkit account, add a product from a name and a description and its pictures from your phone or computer (through the same upload box or link), use reference images of an outfit, a place or a prop, choose one of ten languages for Adapt and Create, add vertical aspect ratios (9:16, 3:4, 1:1, 4:5) to a finished video, and edit the captions Riffkit put on it. You can also ask what is rendering and what is finished.

Each video draws on your Riffkit account, so before one starts the assistant restates the plan and waits for your go-ahead. When a video is finished, the assistant gives you a link that opens it in your browser, with a suggested caption and hashtags. The link works for 6 hours, for anyone who has it, and you can ask for a new one at any time. The video is also in your Riffkit library, where you can download it.

What it does not do: it does not post anywhere for you, it does not trim, cut or add music to your clips, and it does not create characters (set those up once in the Riffkit app).

You sign in on riffkit.ai and approve the connection there. Riffkit shows which assistant is asking and what it will be able to do. You can disconnect at any time, in your assistant or from your Riffkit settings.