Social PublishingBeginner

How to Write Captions and Hashtags with Publer's AI Assist

Generate platform-aware captions, hooks and hashtag sets inside the Publer composer using its built-in AI.

6 minBeginner

Staring at an empty caption box is the slowest part of publishing. Publer's AI Assist sits right inside the composer and can draft a caption, rewrite it in a different tone, or generate hashtags from your post idea. This guide shows how to go from a one-line idea to a finished caption with hashtags for a Reel or Short.

What you need

  • A Publer account (AI Assist is available on paid plans)
  • At least one social account connected
  • A rough idea of what the post is about

Step 1: Open AI Assist in the composer

Start a new post, then click the small AI Assist icon above the caption field. A panel slides in with a prompt box and a list of quick actions such as Generate, Rewrite, Shorten and Add hashtags.

Publer - AI Assist panel
AI Assist
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Prompt: behind the scenes of editing this week's vid
Tone: [ Casual v ] Length: [ Medium v ]
[ Generate ] [ Rewrite ] [ Shorten ] [ + Hashtags ]
Type an idea, pick a tone, and let it draft the caption.

Step 2: Describe the post and pick a tone

Type a plain-language prompt like a short description of the video. Set a tone such as Casual, Professional or Playful, and a length. Keep the prompt specific; a prompt that names the topic and the audience produces a far better caption than a vague one.

Step 3: Generate and refine

Click Generate. Read the draft, then use Rewrite to get a new angle or Shorten to fit TikTok's tighter limit. Each click keeps your prompt but produces a fresh option, so you can cycle a few times before committing.

Step 4: Add hashtags and insert

Click Add hashtags to append a relevant set based on the caption topic. Trim any that feel off-brand, then click Insert to drop the finished caption and hashtags into the composer. Edit by hand from there as you normally would.

Save a brand voice
If you publish often, paste a short brand-voice note into the prompt every time, such as the audience and three words for the tone. The output stays consistent across posts without retyping your whole style guide.

Example

Prompt: behind the scenes of editing this week's video. Casual tone, medium length. The result might read like a friendly two-sentence caption with a question at the end, followed by a tidy block of five to eight hashtags, which you then trim to the four most relevant before scheduling.

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Tags
#publer#ai#captions#hashtags