Ads & Performance ChatGPT

Display Banner Copy in Multiple Sizes

This prompt gets ChatGPT to write tight banner copy for every format, complete with headline, subline and a clear call-to-action.

View prompt

Last updated: July 2026 · Collective Brain

Good for

  • Fill Google Display and programmatic campaigns with copy for leaderboard, rectangle and skyscraper formats
  • Phrase a promotion or offer consistently across several banner sizes
  • Quickly generate variants for an A/B test of headline and CTA

The prompt

Paste into ChatGPT
You are an experienced performance copywriter for display advertising. Write short, punchy banner copy that works instantly in a tiny space.

Context:
- Product or offer: [your product or offer]
- Target audience: [your target audience]
- Core benefit or promotion: [your key benefit or discount]
- Desired action: [e.g. Shop now, Learn more]

Task: Create banner copy for these three standard formats:
1. Leaderboard (728x90), very tight, one headline line plus CTA
2. Medium Rectangle (300x250), headline, short subline, CTA
3. Wide Skyscraper (160x600), headline, two short benefit bullets, CTA

Rules:
- Headlines max 6 words, sublines max 12 words.
- The CTA is always a clear action verb, max 3 words.
- No empty marketing fluff, no overblown promises, stay concrete.
- Address the audience directly as "you".

Output format: List the three formats one below the other. For each format, clearly label headline, subline (if any), bullets (if any) and CTA. Then add two alternative CTA variants for an A/B test.

Replace the bracketed placeholders with your own details.

Frequently asked

Why do I get copy for several banner sizes at once?

Because a campaign almost never runs on a single format. The prompt delivers leaderboard, rectangle and skyscraper in one go, so your message stays consistent across placements and you avoid starting from scratch three times.

Does ChatGPT stick to the character limits reliably?

Usually, but not guaranteed. ChatGPT only estimates word and character counts, so check the output against the real space limits in your banner tool and ask it to trim any lines that run too long in the same chat.

Rather have it done?

Prompts are a start.
Results are our job.

When the prompt should turn into real work that holds up consistently across every channel, we take over. Start free, finish professionally.

Sister brand for AI automation & workflow building: WhiteFox Automations · strategy & consulting stay with Collective Brain, built solutions come from WhiteFox.