Write Ad Copy with Claude
Generate Google Ads headlines, Facebook ad copy, and landing page headers. Test more variations in less time.
The situation
The campaign goes live next week and you need 5 ad variations for A/B testing and you're staring at a blank doc.
After this guide you'll have more ad copy variations in 10 minutes than most people write in a day.
What you walk away with
Multiple ad variations ready for A/B testing
Copy matched to the right funnel stage
Google Ads and Meta-ready character counts met without counting manually
The difference one prompt makes
Don't
write Facebook ad copy for our software
Do this
Write 3 Facebook ad variations for our project management software targeting Operations Managers at companies with 100-500 employees. These are cold-audience ads (awareness stage). Pain point we're addressing: too many tools causing team confusion and missed deadlines. Format for each variation: Primary text (125 chars max), Headline (40 chars max), Description (30 chars max). Voice: straightforward and empathetic, not hype-y. Avoid words like "revolutionary" or "game-changing."
Stage of funnel (awareness), platform (Facebook), character limits, and what to avoid. Those three inputs alone dramatically improve the output.
Identify funnel stage before you write anything
Awareness (cold): The audience does not know your product. Lead with the problem. Consideration (warm): The audience knows the problem and is comparing options. Lead with differentiation. Conversion (retargeting): The audience has been to your site or started a trial. Lead with the specific objection or incentive. Funnel stage changes everything. The same product with the same audience needs a completely different ad depending on where they are.
Give Claude the character limits for the specific platform
Google Ads: 30 characters per headline, 90 characters per description. Meta (Facebook/Instagram): 125 characters primary text, 40 characters headline, 30 characters description. LinkedIn: 150 characters introductory text, 70 characters headline. Paste the limits into your prompt. Claude will respect them without you having to count.
Always ask for 3 to 5 variations
Do not go live with one version. Request variations and test what you did not expect to work. The ad that sounds too direct or too plain often outperforms the clever one. Claude can generate 5 variations in seconds. Your media budget deserves 5 options, not 1.
Ask Claude to evaluate its own output
After generating the variations, ask: "Which of these would you click and why? Which one is weakest and why?" Claude will often catch a weak hook or a claim that does not land. This takes 30 seconds and frequently surfaces the real problem before it goes into your ad account.
What's next?
Repurpose content with ClaudeNew guides, when they ship
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