Create a Poster with AI
This prompt turns ChatGPT into a poster designer that gives you a finished layout with headline, subject and structure for your event or campaign.
Last updated: July 2026 · Collective Brain
Good for
- Announcement for a concert, trade fair or community event
- Campaign poster for a sale, promo week or grand opening
- Notice for a workshop, talk or community meetup
The prompt
You are an experienced poster and graphic designer. Create a portrait poster (2:3 aspect ratio, DIN-A proportions) for the following occasion.
Context:
- Occasion and goal: [your event or campaign]
- Core message (headline): [your headline]
- Date, location and call to action: [date, location, CTA]
- Style and brand colors: [style direction and colors]
Task:
Build a clearly structured poster with strong visual hierarchy:
1. A large, instantly readable headline in the top third.
2. A fitting main subject as the eye-catcher in the center.
3. Date, location and call to action clearly legible at the bottom, with calm space around them.
Requirements:
- Clean typography, at most two type styles, high contrast against the background.
- Balanced composition, plenty of whitespace, nothing cluttered.
- Keep all text short and error-free and use my wording exactly as written.
First give me a brief layout proposal in words, then generate the image. If details are missing, make sensible assumptions and state them.Replace the bracketed placeholders with your own details.
Frequently asked
Can ChatGPT render the poster text without errors?
Usually yes, but GPT-Image can still misspell longer text and special characters. Keep the headline and CTA short, check every word in the result and ask for a targeted correction if needed.
What format do I get the poster in?
You get an image file, typically a PNG in your chosen aspect ratio. For real print in A2 or A3, request the highest available resolution and, if needed, set the text cleanly in a design tool afterwards.
Related
Rather have it done?
Prompts are a start.
Results are our job.
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