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Best prompts for ChatGPT Marketing for ad copy using A/B testing

13 practical, copy-ready prompts to generate A/B test-ready ad copy, hypotheses, test setup, and reporting elements across channels (search, social, video, display, email). Each prompt includes a concise explanation, a ready-to-use AI instruction, and a realistic example to paste and run.

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You know that sinking feeling when you spend hours crafting ad copy, only to watch it flop while burning through your budget? Or worse, when you finally get a winning ad but have no clue which element actually drove the results. Most marketers throw creative at the wall and hope something sticks, missing the strategic A/B testing approach that separates profitable campaigns from expensive experiments.
These 13 battle-tested ChatGPT prompts transform you from guessing marketer to data-driven strategist, giving you copy-ready A/B test frameworks for every major advertising platform. Each prompt delivers complete test setups with variations, hypotheses, and measurement criteria for Facebook carousels, Google search ads, YouTube videos, LinkedIn B2B campaigns, and more. Stop wasting ad spend on hunches and start building systematic testing processes that reveal exactly what messaging drives your audience to convert.
1
Facebook/Meta Carousel Ad A/B Test Kit
You are an expert direct-response copywriter and growth marketer. For the product below, create two distinct A/B test treatments for a Facebook/Meta carousel ad (Treatment A vs Treatment B). For each treatment provide: 3 carousel cards with short headline (max 25 chars), 1–2-line supporting caption for each card (max 125 chars), a primary CTA (one line), one testable hypothesis, recommended audience split (interest/behavior segments), required sample size per variant for statistical confidence (approximation), and primary KPI to track. Format clearly with labels. Product: [PASTE PRODUCT DESCRIPTION] Target audience: [PASTE AUDIENCE] Campaign objective: [AWARENESS/CONSIDERATION/CONVERSION]
Generate carousel card copy variations, headlines, CTAs, test hypotheses, audience splits and recommended KPIs for a two-week A/B test.
2
Google Search Ad A/B (Responsive & Expanded)
Act as a Google Search Ads specialist. For the product below, generate: 8 headline variants (max 30 chars), 4 description variants (max 90 chars), 2 distinct ad group messaging treatments (A and B) with 3 unique headlines prioritized per treatment, 2 hypotheses specifying expected CTR and CVR changes, suggested keyword match types and 6 negative keywords. Also recommend test duration and minimal daily clicks per variant. Product: [PASTE PRODUCT] Primary conversion: [FREE TRIAL/SALE/LEAD]
Produce multiple short/long headlines and descriptions for responsive search ads, plus two clear hypotheses and recommended match types and negative keywords for an A/B test.
3
Instagram Stories & Reels Short-Form Copy Tests
You are a creative social copywriter and performance marketer. For the brand below, produce 6 short video ad scripts (5–12 seconds) split into two themes (3 for Theme A, 3 for Theme B). For each script include: overlay headline (max 8 words), 1-line voiceover caption, suggested visual cue (shot idea), and CTA text for swipe-up. Provide two test hypotheses, recommended KPI (swipe rate/landing CTR) and ideal creative rotation cadence. Brand/Product: [PASTE BRAND/PRODUCT] Audience: [PASTE AUDIENCE]
Create punchy short-form ad scripts and overlay text variations for Stories/Reels plus two CTAs and test setups optimized for mobile swipe/visit actions.
4
YouTube Skippable Ad A/B Copy + Storyboard
You are an ad creative strategist. For the product below, write two 15–30 second skippable YouTube ad scripts (Version A and Version B). For each version include: 5-second hook text, 3 beats of the ad (one-sentence each), suggested on-screen text captions, primary CTA, and a KPI-based hypothesis. Also recommend tracking tags and recommended audience retargeting windows. Product: [PASTE PRODUCT] Goal: [BRAND/CONSIDERATION/CONVERSION]
Provide two contrasting 15–30s video ad scripts for YouTube skippable ads with first 5-second hooks, variations for CTAs, and test hypotheses focused on view-through and conversion rates.
5
LinkedIn Sponsored Content A/B Test for B2B
You are a B2B marketing expert. For the offering below, craft two distinct sponsored content treatments for LinkedIn: one long-form (2–3 short paragraphs) and one short-form (1–2 lines) for each treatment (A and B). Include headline, description, downloadable asset/lead magnet copy, suggested job titles/industries for targeting, bidding strategy (CPC vs CPM) and primary KPI for the A/B test. Offering: [PASTE PRODUCT/OFFER] CTA destination: [LANDING PAGE/FORM/BOOK DEMO]
Create two long-form and two short-form ad copies tailored for LinkedIn, including lead magnet variations, audience job/title targeting, and suggested bidding strategy and success metrics.
6
TikTok Native Ad Variants for Virality vs Conversion
You are a TikTok ad creative specialist. For the product below, generate 4 short script variants: 2 'virality-first' concepts (engagement hooks, challenges, UGC prompts) and 2 'utility-first' concepts (problem-solution/demo). For each provide overlay text, audio/music suggestion, suggested hashtags, and clear CTA. Provide hypotheses and recommended tracking window for pixel events. Product: [PASTE PRODUCT] Primary objective: [BRAND/AWARENESS/SALES]
Produce humorous/viral and utility-focused script pairs to test engagement-first vs conversion-first creative strategies on TikTok.
7
Retargeting Dynamic Ad Copy A/B
You are a performance marketer. For the e-commerce product below, produce copy variations for three retargeting segments: (1) Viewed product but not added, (2) Added to cart but abandoned, (3) Purchased 30+ days ago. For each segment provide two variants (A/B) of headline (<=8 words), body (<=50 words), discount/offer text if applicable, urgency lines, and a testable hypothesis with suggested timing and frequency caps. Product: [PASTE PRODUCT]
Create tailored copy for three retargeting segments (viewers, cart abandoners, past purchasers) and propose split-test treatments to increase recovery rate and repeat purchase.
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