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AI Copywriter Mass-Produces the "Strongest First Line" | How to Create Clickable Catchphrases

Your meticulously crafted post might not be getting clicks, and the reason may lie in the "first line." We explain a method for instantly mass-producing catchphrases from diverse angles by utilizing AI as a talented copywriter.

mitsumonoAI

11 Dec 2025 — 2 min read

Tool Used

Naming Assistant

How AI Creates Clickable Catchphrases

Advertisements, email newsletters, SNS posts.

No matter how excellent the content you prepare is, users instantly decide whether to continue reading based on the first line—the "catchphrase" or "title." Staff members struggle daily to generate this "strongest first line," but the best idea doesn't always come easily.

This article introduces an eye-opening technique: applying the Naming Assistant to utilize AI as a "first-class copywriter."

Specific Steps

Giving AI the Role of a "Copywriter"

▶︎ Naming Assistant

The tool we utilize is the Naming Assistant, which is typically used to generate product names.

The biggest key is to "re-interpret" and input the fields of this tool as "requirements for creating a catchphrase," which will make the AI start generating compelling sentences that capture people's hearts instead of product names.

This "re-interpreted" input allows the AI to propose multiple catchphrase ideas that are most likely to move users' hearts, all within the specified conditions.

Expected Results (Example)

Dramatic Improvement in Ad/SNS ROI (CPA/Engagement Rate)
- You instantly receive ideas from more diverse angles than a single person could devise, significantly shortening the time for creative production. This facilitates data-driven A/B testing, enabling steady improvement in ad click-through rates and SNS post engagement rates.
Breaking Free from Creative Slumps
- Even when ideas are exhausted, the AI provides a variety of options, offering "seeds" for new inspiration.
Elimination of Dependency
- Copywriting skill no longer depends on a specific individual, making it possible for anyone to generate catchphrase proposals of a certain quality or higher.

Target Metrics for the 3-Month Period

KGI (Key Goal Indicator):

Click-Through Rate (CTR) of advertising creative: 15% improvement

KPI (Key Performance Indicators):

Engagement rate of SNS posts (likes, comments, saves): 20% improvement
Time spent on catchphrase creation: 40% reduction

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