AI Shorts Titles, Hooks and Hashtags: How to Post Your Shorts

So you've got the clip. Now what? A great 45-second moment still dies if nobody stops to watch it, and nobody knows what it is once they do.

That's why AI Shorts doesn't just hand you a video file. Each short comes with a small posting kit built in: a hook on screen, a title, a description, and hashtags. Your job is to keep the good ones, tweak what needs tweaking, and post.

The hook: the line at the top

Every short gets a short line at the top of the screen — a hook that tells viewers why to keep watching.

Think of it as the first sentence of the short, before the viewer has heard a word. A fitness coach's hook might promise the one cue that fixes a form mistake. A podcaster's hook might frame the answer that's coming. A gamer's hook might set up the play before it happens.

You don't have to write it. It's there when the short arrives. And it's doing real work: on a feed where the next video is one swipe away, the hook is what buys you the first five seconds.

The title, description, and hashtags

Each short also comes with:

• A title for the short
• A description to go with it
• Hashtags to paste when you post

Paste them when you post, and adjust them if they don't sound like you. The title and hashtags that come with a clip are a starting point, not a script — a teacher posting to one audience and a church streamer posting to another will naturally word things differently, even for similar moments.

Where you can post

Anywhere vertical video goes: TikTok, Instagram Reels, YouTube Shorts, and Facebook Reels. Download each short to your phone, or send it to TikTok, Instagram, or YouTube from the share sheet.

There's no extra step to "publish" from inside AI Shorts itself — you download or share, then post from your phone, with the title and hashtags ready to paste.

Don't forget the 30-day clock

Shorts are kept for 30 days. Keep the shorts you like, delete the rest, and download the ones you want to keep for good. That applies even to a short you haven't posted yet — if it's a keeper, download it now and post it on your own schedule.

A simple posting flow

1. Review your shorts and keep the ones you like.
2. Fix any caption words on the web if needed — edits never use credits. See How to Edit AI Shorts Captions on the Web.
3. Check the hook, title, and hashtags that came with the short.
4. Download the short, or share it to TikTok, Instagram, or YouTube from the share sheet.
5. Paste the title, description, and hashtags when you post.

For how those shorts were found in the first place, see How Castream AI Shorts Finds Your Best Moments. For captions, see AI Shorts Captions: Styles and Word-by-Word Highlighting. For the full feature, start with Castream AI Shorts: Turn Streams and Phone Videos into Vertical Shorts or Castream AI Shorts.