Does ChatGPT Image handle poster text well?

It keeps short headlines legible better than older diffusion models, but long paragraphs still need a design overlay.

What aspect ratio works best?

4:5 for Instagram feed and 9:16 for Reels/TikTok; state the ratio inside the prompt.

Can I match brand colors?

Yes—list hex codes and say “strict brand palette” to reduce color drift across rerolls.

chatgpt image prompts

ChatGPT Image AI poster prompt

Use this when you need a single hero poster for a product drop or event—readable headline, brand colors, and safe margins for social crops.

Example prompt

Commercial launch poster, product hero centered lower third, bold sans headline area at top, brand palette #0F172A and #F97316, soft studio lighting, 4:5, leave 20% negative space top for text overlay, no watermark.

Copy into ChatGPT Image / GPT Image; adjust product names and hex colors.

Steps

Step 1
Lock canvas ratio
Pick 4:5 for feed or 9:16 for stories before generating so typography scale stays consistent.
Step 2
Paste the prompt block
Run in ChatGPT Image with your product name swapped in; regenerate only the headline zone if text drifts.
Step 3
Export and overlay copy
Add final legal lines in Figma; keep the generated negative space instead of cropping tight.

Multi-step pipeline: View workflow guide · Recipe library

Related prompts

FAQ

Does ChatGPT Image handle poster text well?: It keeps short headlines legible better than older diffusion models, but long paragraphs still need a design overlay.
What aspect ratio works best?: 4:5 for Instagram feed and 9:16 for Reels/TikTok; state the ratio inside the prompt.
Can I match brand colors?: Yes—list hex codes and say “strict brand palette” to reduce color drift across rerolls.