A good ChatGPT prompt for Instagram tells the AI who you are, what you sell, who you're talking to, what you want to achieve and what format you want. If you just type "write me an Instagram post", you get generic text that could belong to any business. With those five details, the result sounds like you and is ready to post with a few edits.

Below is the formula and 25 prompts ready to copy. Replace whatever is in brackets with your business details.

How do you write a prompt that doesn't sound robotic?

Before asking for anything, paste this block at the start of the conversation. You write it once and ChatGPT uses it for everything you ask afterwards. It follows the same advice as OpenAI's prompting guide: give it context, a role and the format you expect.

You are the social media manager for [business name], which sells [product or service] in [city or country]. My customers are [who they are and what they worry about]. My tone is [friendly, direct, playful…] and I never use [words or emojis you dislike]. Write short sentences and don't exaggerate.

After that, every request needs three things: which piece you want (caption, carousel, script), what it's for (saves, comments, WhatsApp messages) and how long.

Prompts for content ideas

  1. "Give me 20 post ideas for [business], split into: teaching, behind the scenes, answering questions and selling. One line per idea."
  2. "What are the 15 questions people ask most before buying [product]? Turn them into post ideas."
  3. "Give me 10 common mistakes people make with [topic in your field] and how to explain them in a carousel."
  4. "Suggest 8 content ideas for [date or season] that aren't a discount."
  5. "These are my 3 posts with the most reach: [paste them]. What do they have in common? Give me 10 similar ideas."
60 more prompts and a 30-day plan The ebook Sell on Instagram in 30 Days with AI (USD 9.90) includes 60 prompts by goal, a day-by-day plan and scripts to close sales over WhatsApp. To organize what you post, the free Plan de Contenido app builds your monthly calendar.

Prompts for captions

  1. "Write a caption of no more than 80 words for this photo: [describe it]. The first line should make people want to read on, and it should end by inviting them to message on WhatsApp."
  2. "Give me 10 different opening lines for a post about [topic]. Short, no emojis at the start and no obvious questions."
  3. "Rewrite this caption so it sounds more natural and shorter, without losing information: [paste your text]."
  4. "Write a caption that tells the story of [real customer or order] in 4 sentences: what they needed, what we did, how it turned out and what they said."
  5. "Suggest 15 hashtags for [business] in [city]: 5 big, 5 medium and 5 local."

Prompts for carousels and reels

  1. "Build a 7-slide carousel about [topic]: slide 1 with a scroll-stopping title, 5 slides with one tip each (20 words max) and a final slide with an action."
  2. "Turn this article or audio into a 6-slide carousel: [paste the text]."
  3. "Write a 20-second reel script showing how we make [product]. Split it into 2–3 second shots and include the on-screen text for each."
  4. "Give me 5 reel ideas where I talk to camera about [topic], with a hook for the first 3 seconds."
  5. "Write 3 short text overlays for a before-and-after reel of [service]."

Prompts for your profile

  1. "Write 5 Instagram bio versions of 150 characters max for [business]: what I sell, who it's for, one reason to choose me and a single action."
  2. "Which 5 highlights should [business] have? Give me a one- or two-word name for each and which stories go inside."
  3. "Write a pinned post that explains in 3 slides what I do, how to buy and how long it takes."

For the bio, also see the 15 examples by industry.

Prompts for selling by message

  1. "Someone DMed me "price?". Write a short reply that gives the price, says what's included and asks a question to keep the conversation going."
  2. "A customer said it's expensive. Give me 3 replies that don't lower the price and offer a smaller option instead."
  3. "Write a message for someone who asked 3 days ago and never replied. It shouldn't feel pushy."
  4. "Write 5 quick replies for the questions I get most: [list them]."

Prompts for planning and reviewing

  1. "Build a 4-week calendar with 3 posts a week for [business]: format, topic and goal for each, as a table."
  2. "Here are the numbers for my last 10 posts: [reach, saves, comments]. Which type of content should I repeat and which should I drop?"
  3. "Ask me 10 questions about my business to understand my customers better, then use the answers to improve my next posts."

If you'd rather not build the calendar by hand, the free Plan de Contenido app sets it up and reminds you what to post each day. More ideas in the content calendar article.

Mistakes when using ChatGPT for Instagram

  • Posting without reading. AI makes up facts, prices and testimonials. Check every number and every promise.
  • Giving it no context. Without the opening block, everything sounds like your competitors.
  • Accepting the first answer. Ask for "shorter", "more direct" or "no emojis" until it sounds like you.
  • Using it for everything. No AI replaces photos of your products, your face and your real customers, and those are what sell the most.

Frequently asked questions

Yes. All 25 prompts work in the free version. What matters is giving it your business context at the start of the conversation.

It doesn't penalize text for being written with AI help. What doesn't work is generic content that helps nobody, whether a person or a machine wrote it.

Yes. They work the same in any AI assistant: the context, goal and format formula is the same.

It depends on how much you post. The biggest saving comes from asking for the month's ideas and first drafts in one session and keeping your editing time for photos and videos.

Wrapping up

AI doesn't replace someone who knows their customers: it gets rid of the blank page. Give it context, ask for pieces with a clear goal and edit until it sounds like you.

Next step: plan your month with Plan de Contenido (free), use the 80 Canva templates in the Nova Kit for design and, for the full plan to sell, read Sell on Instagram in 30 Days with AI.