An AI ad copy generator is a prompt-based system that takes your product brief and outputs ad copy formatted for a specific platform. A good one produces 5+ variants across different angles (urgency, benefit, social proof, curiosity), respects character limits, and matches your brand tone. The difference between a generic AI output and a usable ad is mostly in how the prompt is structured. You need to specify: the platform and its character limits, the audience, the product's one-sentence value statement, the angle, and the tone. At aidowith.me, the Writing route walks through building a reusable prompt system that acts as your personal ad copy generator. You set up the prompts once and reuse them across campaigns. The route covers Google Search, Meta feed, and LinkedIn sponsored ads across 3 platform formats, and takes about 1 hour to complete.
Last updated: April 2026
The Problem and the Fix
Without a route
- Generic AI ad copy fails to hit platform character limits (Google headline: 30 chars, Meta primary text: 125 chars) without a specifically structured prompt.
- Most AI tools produce 1-2 ad variants that all sound the same. A proper generator setup produces 5-8 variants across distinct angles.
- Without a scoring step, marketers waste 40-60% of test budget on copy that could have been eliminated before launch.
With aidowith.me
- Get prompt templates pre-configured for Google Search, Meta, and LinkedIn character limits and format requirements.
- Build a generation system that produces 5+ variants per angle in one prompt, ready to score and select for testing.
- Add a scoring step that eliminates weak copy before it costs money, using a 5-point rubric that takes under 10 minutes.
Who Builds This With AI
Marketers
Content, campaigns, and briefs done in hours instead of days.
Managers & Leads
Reports, presentations, and team comms handled faster.
Ops & Analysts
Summaries, process docs, and structured output from messy inputs.
How It Works
Write your product brief in AI-ready format
Summarize your product in one sentence, name your audience, list 3 benefits, and specify the platform. This brief becomes the input to every generation prompt in your system.
Generate variants with platform-specific prompts
Use separate prompts for each platform. The prompt template handles character limits and format requirements. You get 5-8 variants per run, each from a different angle.
Score and select before testing
Rate each variant on specificity, clarity, urgency, tone fit, and originality. Keep the top 2-3 for A/B testing. Document the others for future campaigns.
Build Your Own AI Ad Copy System
The Writing route gives you prompt templates for Google, Meta, and LinkedIn, plus a scoring rubric and a generation system you keep. About 1 hour.
Start This Route →What You Walk Away With
Write your product brief in AI-ready format
Generate variants with platform-specific prompts
Score and select before testing
Add a scoring step that eliminates weak copy before it costs money, using a 5-point rubric that takes under 10 minutes.
"I set up the prompt templates once and now I can generate platform-ready ad copy in 15 minutes at the start of every campaign. The scoring step stopped me from wasting budget on copy that had no shot at working."- Growth Marketer, SaaS startup
Questions
You don't need a paid ad copy tool. ChatGPT or Claude with a well-structured prompt produces platform-ready copy for Google, Meta, and LinkedIn at no extra cost. The route at aidowith.me gives you prompt templates that handle character limits and format requirements for each platform, so you're not paying for a separate subscription on top of your ad spend.
Generic copy comes from vague briefs. Specify the audience job title, the exact problem your product solves, and the tone (conversational vs. direct vs. urgent). Add a line in your prompt telling the AI to avoid generic phrases like 'unlock your potential' or 'take your business to the next level'. The route covers this brief structure in detail with examples.
AI can be instructed to avoid capitalization errors, superlatives, and repeated punctuation, which are Google's most common policy violations. The prompt templates in the route include these constraints. You still need to review before uploading, but the templates catch the most frequent issues and reduce the chance of a rejected ad.