AI Prompts for Facebook and Instagram Ads
Thirty copy-and-paste prompts for primary text, headlines, Reels and Stories hooks, audience research and testing, written around Meta's character limits.
By AI ToolsPedia Editorial TeamUpdated
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Most AI-written ads fail for the same reason: the prompt was one line long. "Write a Facebook ad for my candles" gets you a polite, forgettable paragraph that sounds like every other ad in the feed. The fix is not a cleverer tool. It is a better brief, a clear job for the model and the character limits written into the prompt.
This guide gives you 30 AI prompts for Facebook and Instagram ads: one master brief, then ready-to-paste prompts for primary text, headlines, Reels and Stories hooks, audience research, retargeting and testing. Everything in [square brackets] is a blank for you to fill in. Paste the master brief first, then run whichever prompts fit the job.
A few honest notes. These are templates, not proven winners, and no prompt can promise results; what works depends on your offer, your creative and your budget. The text limits come from Meta's own ads guide, which can change. And you are responsible for every claim in the final ad, so the last section covers what to check before you publish. Any chat assistant can run these, and our ChatGPT review and Claude review cover the two we would start with.
How to Use These Prompts
Start every chat with the master brief below. It does the job most one-line prompts skip: it tells the model who you are, what you are selling and what it must never invent. Once it is in the chat, each prompt after it can stay short.
A good brief covers five things:
- Product and offer: what it is, the price and the deadline if there is one.
- Customer need: what the buyer wants done, described by the situation rather than by who they are.
- Real proof: reviews, numbers or guarantees you can show on request.
- Tone and banned words: how you talk, and the phrases you never use.
- Placement: Feed, Stories or Reels, because the limits differ.
The Master Brief
Paste this first and fill in the blanks. Every later prompt assumes it is already in the chat.
You are a direct-response copywriter for Facebook and Instagram ads. Here is my brief. Keep it in mind for everything I ask next.
Business: [what you sell, in one sentence]. Offer: [price, discount or free trial, and the deadline if there is one]. Customer: [who buys it and what they want to get done, described by their need rather than who they are].
Proof I can show: [real reviews, numbers, awards or guarantees]. Tone: [for example plain and friendly]. Words to avoid: [list]. Never invent statistics, testimonials or results, and never say anything about the reader's personal situation.
Reply with "ready", plus one question if anything is missing.
Run each prompt in the same chat so the brief stays in context, and always ask for several options. Expect to discard most of them; the value is in the one or two lines you would not have written yourself.
Facebook and Instagram Ad Text Limits
When you write AI prompts for Facebook and Instagram ads, put the limit in the prompt, because AI tools will happily produce 300 words of primary text that Meta cuts off with a "See more". Meta's ads guide lists recommended text lengths for each placement. They are recommendations to avoid truncation rather than hard caps, and they change, so check the current guide before you lock copy in.
| Placement | Primary Text | Headline |
|---|---|---|
| Facebook Feed | 50 to 150 characters | 27 characters |
| Instagram Feed | 125 characters | 40 characters |
| Instagram Stories | 125 characters | Not listed |
| Instagram Reels | 44 characters | Not listed |
The practical rule is to put the hook in the first 125 characters and treat anything after it as a bonus. Longer copy can still work, but only the opening line is guaranteed to be seen.
Primary Text Prompts
Primary text is the copy above the image, and on mobile only the first line or two shows before the cut. So write for the first 125 characters. Each prompt below asks for several options so you can pick the line that sounds like you.
Problem-Led Primary Text
Opens on a need your customer already has, without telling the reader something about themselves.
Using the brief above, write 5 primary text options for a Facebook Feed ad for [product]. Open on this need: [need, for example getting a gift sorted before Friday]. Describe the situation, never the reader: avoid "you are" and "are you" phrasing about health, money, age or other personal traits.
Each option should be 125 to 150 characters, end with a clear next step and use no hype words.
Benefit-Led Short Copy for Instagram Feed
Short, single-benefit lines for a placement where people scroll fast.
Write 8 primary text options under 125 characters for an Instagram Feed ad for [product]. Each one leads with a single benefit: [benefit]. Put the strongest words in the first 40 characters.
Vary the openings, and give me a mix of plain statements and questions.
Story-Led Primary Text
A longer option for a founder-led brand, with the hook kept short.
Write 3 primary text options of about 400 characters each, in the voice of the founder of [brand]. Tell the story in three sentences: what we noticed, what we made, and what it does for customers. Use only these facts: [facts].
Keep the first line under 125 characters so it works before the "See more" cut.
Proof-Led Primary Text
For when you have a real review, number or award worth leading with.
Write 5 primary text options that open with this proof: [real review quote, number or award]. Quote it exactly as given and do not rewrite, round or extend it.
Follow it with one line on the product and one on the offer: [offer].
Offer-Led Primary Text
For sales and launches where the deal is the hook.
Write 6 primary text options for this offer: [offer, price and end date]. State the deadline and the saving plainly in the first line and keep each option under 125 characters.
No countdown clichés like "hurry" or "last chance" unless the deadline is real.
Objection-Handling Primary Text
Answers the doubt that stops people buying.
Our customers often hesitate because [objection]. Write 4 primary text options that answer it honestly in 2 to 3 short sentences, using only these facts: [facts, for example return policy, guarantee or warranty].
Do not dismiss the concern and do not exaggerate our answer.
Headline and Call-to-Action Prompts
Headlines are the tightest copy you will write. Facebook Feed recommends 27 characters and Instagram 40, and a model can miscount unless you ask it to show the count. Check the numbers yourself anyway.
Facebook Feed Headlines (27 Characters)
The shortest limit, so every word has to earn its place.
Write 15 headlines for a Facebook Feed ad for [product], each 27 characters or fewer including spaces. Show the character count after each one.
Cover three angles: 5 on the benefit, 5 on the offer and 5 that simply describe what it is.
Instagram Headlines (40 Characters)
A little more room for proof.
Write 15 headlines for an Instagram Feed ad for [product], each 40 characters or fewer including spaces, with the count after each. Cover three angles: 5 on the benefit, 5 on the offer and 5 that use this proof: [proof].
Curiosity Headlines Without Clickbait
Interesting enough to stop the scroll, honest enough to survive review.
Write 8 headlines that make people curious about [product] but still say what it is. Each must be true, specific and under 40 characters. Avoid "you won't believe", "secret" and "trick".
For each one, tell me what the ad has to show to deliver on the promise.
Call-to-Action Lines
Closing lines for the end of your primary text.
Write 10 call-to-action lines to end the primary text for [product], each under 8 words. Match the action to the goal: [purchase, sign-up, booking or quote].
Use no more than one exclamation mark across the whole list.
Shortening Headlines to Fit
For when a good headline is a few characters too long.
Here are my headlines: [paste]. Rewrite each to 27 characters or fewer without losing the meaning, and show the new count. Mark any that cannot be shortened honestly instead of forcing them.
Reels, Stories and Video Hook Prompts
On Reels and Stories the hook is the first spoken line or on-screen sentence, not the caption. Meta's guidance for these placements keeps text short, with Reels at 44 characters of primary text, so these AI prompts for Facebook and Instagram ads put the work into the opening seconds and the script.
Reels Hooks for the First Three Seconds
Ten openers to film and test.
Write 10 opening lines for a Reels ad for [product], each speakable in under 3 seconds. Open on the problem, a fact I can prove ([fact]) or a visible result.
No greetings, no "hey guys" and no introduction of the brand.
A 15-Second Reels Script
A full script with spoken lines and on-screen text.
Write a 15-second Reels script for [product] in four beats: hook, problem, demo and offer. For each beat give the spoken line and an on-screen text line of 5 words or fewer.
Mark where the product must be visible in the frame.
A Three-Frame Stories Sequence
A short Stories ad with safe-zone awareness.
Write a 3-frame Instagram Stories ad for [product]. Frame 1 is the hook, frame 2 is proof or a demo, and frame 3 is the offer and call to action. Use 8 words or fewer of on-screen text per frame.
Keep text away from the top and bottom of the screen, where the profile icon and call-to-action button sit.
UGC-Style Creator Brief
A brief you can hand to a creator filming on their phone.
Write a brief for a creator filming a UGC-style video of [product]. Include the one message to land, three things they must show on camera, two things they must not say (no unproven claims), a suggested opening line in their own words and a length of 20 to 30 seconds.
Keep it loose enough that the video does not sound read from a script.
Carousel Card Copy
Five cards, one idea each.
Write copy for a 5-card Instagram carousel for [product]. Card 1 is the hook, cards 2 to 4 each make one point backed by one proof detail, and card 5 is the offer.
Give each card a short headline of 5 words or fewer and a one-line description.
Audience and Angle Research Prompts
Better prompts start with better inputs. These five turn real customer language into angles, so the copy sounds like your buyers instead of a template. Paste real reviews and support messages wherever a prompt asks, and describe audiences by what they want to do.
Customer Language Mining
Pulls the words your customers already use.
Below are real customer reviews and support messages for [product]. Pull out the 10 phrases customers use most often to describe the problem, the 5 outcomes they care about most and the 5 doubts they had before buying. Quote their words exactly.
Reviews: [paste].
Angle Matrix
A spread of angles to test, with the proof each one needs.
Using the brief, list 8 different angles for an ad for [product], for example saving time, saving money, status, safety or ease. For each give a one-line hook and the proof I would need to show.
Mark any angle that would need a claim I cannot back up.
Objection List
The reasons people do not buy, ranked.
List the 10 most likely reasons someone would not buy [product] after seeing an ad, ordered by how common they probably are. For each, suggest the shortest honest answer and say where it fits best: ad text, landing page or FAQ.
Awareness-Stage Rewrites
One ad, rewritten for three kinds of viewer.
Take this ad: [paste]. Rewrite it three ways: for someone who does not know they have the problem, for someone who knows the problem but not our solution, and for someone comparing us with [competitor type]. Keep the offer the same.
Audience Segments by Need
Ideas for targeting tests that do not lean on personal traits.
Suggest 6 audience segments for [product], defined by the job they want done rather than by personal traits. For each give the main motivation, one angle and one interest or topic I could test in Meta's targeting.
Avoid anything based on health, finances, age, ethnicity or other sensitive traits.
Retargeting, Sale and Seasonal Prompts
Warm audiences already know you, so the copy can be shorter and more specific. The risk is sounding like you are watching them, so these prompts steer around that.
Cart Abandoner Ads
For people who added the product but did not buy.
Write 5 short primary text options for people who added [product] to their cart but did not buy. Address the likely reason they paused: [reason, for example shipping cost]. Include the answer: [for example free returns].
Keep each under 125 characters and avoid guilt or false urgency.
Past Visitor Ads
For people who looked and left.
Write 5 primary text options for people who visited the page for [product] but did not add it to their cart. Lead with one proof point or a new reason to look again: [new thing].
Do not imply we are tracking them: no "we saw you looking".
Flash Sale Sequence
Three ads that change angle instead of just adding pressure.
Write a three-ad sequence for a sale on [product] running [dates]: an announcement, a midpoint reminder and a final-day notice. State the real discount and end time in each, keep each under 125 characters, and change the angle every time rather than only adding urgency.
Seasonal Campaign Copy
Holiday and event copy with a real use behind it.
Write 6 primary text options for [event or season] for [product], tied to a real use: [use]. Avoid generic greetings.
Give each a different angle: gift, treat yourself, practical, group, last-minute and early-bird.
Testing and Improvement Prompts
Writing is half the job. These prompts help you plan a clean test, learn from a weak ad and catch problems before Meta's review does. Change one thing per variant, or you will never know what made the difference.
Variation Matrix for A/B Tests
A tidy test plan instead of a pile of random ads.
Build a test plan for [product]: 3 hooks, 3 offers and 2 calls to action, each written in full. Do not mix more than one change per variant. Label each so I can name the ads, and tell me which two I should run first and why.
Underperformer Rewrite
Turns a weak ad and its numbers into three fixes.
This ad ran for [number of days] with these results: [impressions, click-through rate, cost per result]. The text is: [paste].
Suggest three likely reasons it underperformed, based only on the text and the numbers, then rewrite it three ways, each fixing one reason. Say clearly that you are guessing about causes.
Fit to Character Limit
Cuts long drafts without losing the offer.
Cut each of these primary texts to [number] characters without changing the offer or any number in it. Show the new character count and flag any that lose meaning when shortened. Text: [paste].
Policy Pre-Check
A first filter before you submit. It does not replace Meta's review.
Review these ad texts for problems before I submit them to Meta. Flag wording that points to the reader's personal attributes, claims about results, health or income that I would need evidence for, before-and-after language, and anything that contradicts my brief.
Quote each problem line and suggest a safer rewrite. You are a first filter, not a replacement for Meta's review. Text: [paste].
What to Check Before You Publish
Even the best AI prompts for Facebook and Instagram ads give you a draft, not an approved ad. Every ad still goes through Meta's review, and the claims in it are yours. Before you hit publish, run through this list:
- Personal attributes: Meta's advertising standards restrict ads that assert or imply things about a person, such as health, finances, beliefs or ethnicity. "Are you struggling with debt?" is the classic example. Describe the situation instead of the reader, and read Meta's current wording.
- Claims you can prove: results, savings, rankings and "best" claims need evidence. In the US, the Federal Trade Commission Act prohibits unfair or deceptive advertising, so keep a note of where every number came from.
- Real testimonials: only quote reviews that exist, exactly as written. Never let a model write a customer quote.
- Special ad categories: credit, employment, housing and social issues, elections or politics carry extra rules and restrictions on targeting. Check Meta's current list before you run them.
- Numbers and dates: recount the characters and confirm that prices, deadlines and offers match your landing page.
If you want a tool built around ad copy rather than a general chat assistant, our guide to the best AI tools for ad copy compares six of them on platform limits, scoring and price.
Which AI Tool to Run These Prompts In
Any capable chat assistant can run these AI prompts for Facebook and Instagram ads, and we have not ranked how each tool handles this exact set. In practice, ChatGPT is the quicker option for a big batch of short variations, while Claude tends to keep a long brief and a consistent voice better across a conversation. Our ChatGPT vs Claude comparison scores both across seven rounds, including writing and long documents.
Whichever you use, paste the master brief first, give it real reviews instead of adjectives, and treat the output as a first draft.
Frequently asked questions
What is the best AI prompt for Facebook ads?
There is no single best prompt, but the best AI prompts for Facebook and Instagram ads share a shape: a short brief about the business and offer, one clear job, the character limit, and a request for several options. Start with the master brief above and add one task prompt at a time.
How long should Facebook and Instagram ad copy be?
Meta's ads guide recommends 50 to 150 characters of primary text and a 27-character headline for Facebook Feed, and 125 characters of primary text with a 40-character headline for Instagram Feed. Stories are 125 characters of primary text and Reels 44. These are recommendations to avoid truncation, so check the current guide.
Can ChatGPT write Facebook and Instagram ad copy?
Yes. ChatGPT and Claude both handle it well when you give them a brief. Neither knows your customers, so paste in real reviews and facts, and check every claim yourself before you publish.
Does Meta allow AI-written ads?
Meta's ad standards focus on what an ad says and shows, and the rules we have seen do not turn on who wrote the text. Every ad still goes through review, and you are responsible for it. Read Meta's current advertising standards before you publish.
Why does my AI ad copy sound generic?
Usually the prompt has no specifics. Add real customer phrases, a concrete offer, a proof point and a list of banned words, then ask for several options in different angles instead of one.
How many ad variations should I test at once?
Few enough that each one gets meaningful spend. Change one element at a time, such as the hook, and let each variant collect enough results before you decide.