ChatGPT ad creative: image requirements and a clearer message
Prepare readable ad images, a specific headline and a relevant destination while checking the current validation in Ads Manager.

Begin with the product benefit the reader can verify on the destination. Make the offer clear before polishing the image.
Your blog cover and your actual ad creative serve different jobs. A bold editorial cover can earn a reader’s attention in search; an ad image should help the person recognize the product or service being offered.
Check the current technical requirements
OpenAI’s troubleshooting page currently documents square PNG or JPG ad images up to 1200 × 1200 pixels, with a directly accessible public image URL where a URL is used.
Inspect the uploaded preview and the account’s validation before final approval. Product-feed templates have their own workflow, so do not apply manual-image instructions blindly to every format.
We do not publish headline or description character limits here without a verified current specification. Use the limits shown in your account and check for truncation in the preview.
Use one product idea per image
Choose a clear product view or a supported example of its use. Reduce clutter, avoid tiny text and make the main subject recognizable at a small size. If you sell software, a truthful, readable detail of the workflow can help more than a generic AI symbol.
Use assets you own or are authorized to use. An illustration should not look like a screenshot of a feature the product lacks. Check the crop so essential information does not sit at the edge.
Let the description add information
The ad creation guide recommends a concise headline and a description that adds to it. Repeating the headline leaves less room for useful details.
Add a supported feature, a relevant constraint or a clear next step. If the trial requires a card, the destination should explain it before the user commits. A vague “transform your business” line contributes less than a specific capability.
Prepare variations you can learn from
Choose a reason for each variation. One might lead with booking setup, another with reminders. Keep the destination and offer stable if the message is what you want to compare.
If you change the image, headline, audience brief and page at once, you can assess the whole package but cannot isolate the reason for a difference. Label the experiment accordingly.
Save the source asset, approved copy, destination and preview. After launch, review downstream outcomes as well as clicks. A dramatic creative that attracts the wrong visitors can win the click comparison while losing the business test.
The landing-page review helps carry the same promise through to the next step.
Sources and review date
Official documentation checked on 2026-10-12. Availability and features can change; confirm them before launch.