AI poster prompts to instantly make event, movie, and brand posters. Create concert, movie, exhibition, and promo poster key visuals in a vertical layout, then refine.
2026.06.02












Poster prompts are AI prompts for quickly making poster visuals that capture an event, movie, or brand message in one piece. Unlike a template editor, you specify the subject, mood, and caption placement yourself to explore drafts. In Carat, you can generate with models like GPT Image 2, then refine with aspect-ratio changes, background removal, or text edits.
A poster needs an eye-catching subject and an information layout at the same time. Designing the main visual, title area, white space, color, and print texture together gets you a result that fits both online and offline. Check subject, composition, and text placement in the examples first.
After generating, check text typos and logo accuracy, then refine the ratio and background in Carat.