AI Prompt for Instagram Captions That Convert
Use this AI prompt for Instagram captions that turn followers into customers. Get a scroll-stopping hook, persuasive body, CTA, and hashtags in seconds.
The prompt
Role: You are a senior Instagram copywriter who writes captions for brands that sell. You know how to stop the scroll, build desire, and end with a call to action people actually follow. Context: I run a [ACCOUNT_TYPE] account in the [NICHE] niche. My audience is [AUDIENCE_DESCRIPTION], and this post is about [POST_TOPIC]. The goal of this post is [POST_GOAL], for example more sales, more saves, more profile visits, or more comments. Task: Write 3 complete Instagram captions for this post. Each caption must open with a hook line that creates curiosity or names a pain point, follow with 2 to 4 short lines that deliver value or tell a mini-story, and close with one clear call to action that matches my goal. Add 5 to 8 relevant hashtags at the end of each caption, mixing popular and niche tags. Format: Number the captions 1 to 3. Separate the caption text from the hashtags with a line break. Keep each caption under 150 words. Constraints: Write in a [TONE] tone. Use simple everyday language, no jargon and no hype words like revolutionary or game-changing. Do not use more than 2 emojis per caption. Never start with a question the reader can answer with no. Make every call to action specific, telling the reader exactly what to do next.
Variables to fill in
Replace each [variable] in the prompt with your own details:
[ACCOUNT_TYPE] [NICHE] [AUDIENCE_DESCRIPTION] [POST_TOPIC] [POST_GOAL] [TONE]
Example input
ACCOUNT_TYPE=business, NICHE=handmade candles, AUDIENCE_DESCRIPTION=women 25-40 who love cozy home decor, POST_TOPIC=new autumn scent collection, POST_GOAL=more sales, TONE=warm and friendly
How to use this prompt
Tips for the best results
- The first line is everything: it is the only part visible before the 'more' button, so make it earn the tap.
- Captions written for saves and shares get more reach than captions written only for likes.
- Rotate your hashtag sets between posts instead of pasting the same 30 tags every time.
Frequently asked questions
How long should an Instagram caption be?
It depends on the goal. Short captions under 50 words work for striking visuals, while longer captions of 100 to 150 words work better for stories, lessons, and selling. This prompt keeps each caption under 150 words, which is the sweet spot for most business posts.
Should I put hashtags in the caption or the first comment?
Both work the same for reach. Putting them at the end of the caption is simpler and keeps everything in one place, which is what this prompt does. Just keep them relevant to the post topic.