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Ad Copy Variant Generator

Example prompt: "Given this product brief, generate 10 Google Ads headlines and 5 descriptions, plus 5 Facebook primary text variants, and put them in a Google Sheet for review."

The Problem

Each paid channel has its own character limits, tone conventions, and field structure. Google Search Ads want tight 30-character headlines and 90-character descriptions, Facebook rewards conversational primary text, and LinkedIn wants a professional tone with a clear offer. To run a proper A/B test, each campaign needs at least 5-10 variants per field, which means a single product launch can require 60-80 pieces of copy across channels. Writing that volume by hand takes half a day, and most teams end up recycling similar phrasing because fatigue sets in before the list is finished.

How GloriaMundo Solves It

We build a workflow that takes a product brief and target audience as input and produces ad copy sets for each channel you run. An LLM step generates Google Ads headlines and descriptions that respect the character limits. A second LLM step writes Facebook primary text variants with the slightly longer, more conversational voice that platform expects. A third LLM step produces LinkedIn headline and introductory text options in a professional tone. The output is written to a Google Sheet with a row per variant, a column per channel field, and a character count column so you can verify limits before uploading to your ad platforms. Glass Box preview shows every variant before anything is written, so you can adjust the brief and regenerate if the voice is off.

Example Workflow Steps

  1. Trigger (manual): Paste or link the product brief, target audience, and key benefits.
  2. Step 1 (LLM): Generate 10 Google Ads headlines (30 characters or fewer) and 5 descriptions (90 characters or fewer).
  3. Step 2 (LLM): Generate 5 Facebook primary text variants (125 character recommendation) and 3 headline variants.
  4. Step 3 (LLM): Generate 5 LinkedIn introductory text variants and 3 headline variants in a professional tone.
  5. Step 4 (LLM): Score each variant for clarity of offer, specificity, and call-to-action strength, and flag any that exceed character limits.
  6. Step 5 (Integration): Append all variants to a Google Sheet with columns for channel, field type, copy, character count, and quality score.

Integrations Used

  • Google Sheets — the shared variant library where your paid team reviews and selects copy to publish
  • Google Docs — optional, used when you want a formatted brief document rather than a sheet

Who This Is For

Paid media specialists, growth marketers, and founders running their own ads who launch campaigns often enough that writing fresh variants by hand is eating into strategy time.

Time & Cost Saved

Writing a full set of ad variants across three channels by hand typically takes 3-5 hours per campaign. This workflow produces the same set in a few minutes, leaving roughly 30-60 minutes of review and refinement. Over 4 campaigns a month, that is 10-15 hours reclaimed. The workflow uses LLM and integration steps only, so the credit cost per run is modest.