Guide · 2026-10-19

ChatGPT Prompts for Instagram Content: Captions, Reels & Carousels

Instagram rewards consistency and strong first seconds. These five ChatGPT prompts help you plan a month of Reels, write captions that end with a clear call to action, and fix videos that people scroll past.

Why most AI Instagram captions sound the same

If you ask ChatGPT for "an Instagram caption about productivity", you get the same emoji-heavy paragraph everyone else gets. The model has no idea who your audience is, what you sell, how you talk or what you want the viewer to do next. The fix is not a cleverer one-liner. It is a brief.

A good content brief tells the AI four things: who it is (a short-form video strategist, a direct-response copywriter), your context (niche, audience, offer, voice), the exact task, and the output format. Fill those in and the same model starts writing copy that sounds like you.

How to use these prompts

Replace every [PLACEHOLDER] with real details: your niche, audience, offer and two or three examples of your own posts for voice. Run the prompt, then reply with feedback ("shorter", "less hype", "more specific to beginners") instead of starting again. ChatGPT gets much better with a couple of rounds of direction.

A practical weekly rhythm: use the 30 Reel ideas prompt once a month, batch your hooks and scripts on one day, write captions as you schedule, and run the retention doctor on any Reel that underperforms.

What makes an Instagram post work

A hook in the first second, spoken and on screen.
One idea per Reel or carousel, not five.
A specific call to action: save, share, comment a keyword or visit your link.
A series format, so viewers know what they will get if they follow.

The prompts

Caption Writer With CTA (SM-023)

Best tool: Any model.

ROLE: You are a social copywriter.
CONTEXT: Post content: [POST_CONTENT]. Platform: [PLATFORM]. Desired action: [DESIRED_ACTION] (comment, save, share, click, DM).
TASK: Write 3 captions: short (under 50 words), medium (about 120 words) and long-form story (about 250 words). Each ends with a natural call to action.
OUTPUT FORMAT: Three labeled captions, then 5 alternative CTA lines.

30-Second Reel Script (SM-046)

Best tool: Any model.

ROLE: You are a short-form video scriptwriter.
CONTEXT: Topic: [TOPIC]. Audience: [TARGET_AUDIENCE]. On-camera style: [STYLE] (talking head, voiceover, faceless).
TASK: Write a 30-second script: a 0-3 second hook, 3 quick value beats, and a payoff with a CTA.
OUTPUT FORMAT: Table: Time | Spoken line | On-screen text | B-roll or visual. Add a caption and 5 relevant hashtags.

30 Reel Ideas for a Month (SM-055)

Best tool: GPT-6 Astra or Claude.

ROLE: You are a short-form content planner.
CONTEXT: Pillars: [CONTENT_PILLARS]. Offer: [OFFER].
TASK: Plan 30 reel ideas for a month, balanced across education, entertainment, inspiration and promotion (roughly 40/25/20/15).
OUTPUT FORMAT: Day | Category | Hook | 1-line concept | CTA.

Hook-First Video Batch (SM-047)

Best tool: Any model.

ROLE: You are a viral video strategist.
CONTEXT: Niche: [NICHE].
TASK: Write 15 video concepts, each with a visual hook (what the viewer sees in the first second) and a verbal hook (the first line spoken).
OUTPUT FORMAT: Numbered list: Concept | Visual hook | Verbal hook | Length (seconds).

Video Retention Doctor (SM-053)

Best tool: Claude.

ROLE: You are a retention editor.
CONTEXT: My script or transcript: [PASTE_SCRIPT]. Average watch time: [AVG_WATCH_TIME]. Video length: [VIDEO_LENGTH].
TASK: Find the moments where viewers likely drop off and rewrite those lines. Add pattern interrupts and open loops.
OUTPUT FORMAT: Annotated script with "DROP RISK" markers, then the improved script.

These prompts come from the Social Media Edition, which has 60 prompts across positioning, ideas, copywriting, X, LinkedIn, short-form video and YouTube, plus workflows that chain them together.

Get all of them: Social Media Edition

The full edition is $20. The complete bundle with all four editions is $39.

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