# How to write ChatGPT ads > How to write ChatGPT ads that get matched and clicked. The title and copy lengths, image rules, three angles for one product, and the mistakes that get ads rejected. - **Author**: Marxx - **Published**: 2026-10-31 - **Category**: ChatGPT ads - **URL**: https://marxx.ai/library-guides/how-to-write-chatgpt-ads --- Write a short title that says what the product does, then copy that adds one new detail, and make several versions that each take a different angle. OpenAI recommends titles of 16 to 24 characters and copy of 32 to 48, and says clear, specific, benefit-focused ads are more likely to be relevant ([OpenAI's ad guide](https://help.openai.com/en/articles/20001212-creating-ads-for-chatgpt-ads), checked 2026-10-31). ## The specs | Part | Recommended | Limit | |---|---|---| | Title | 16 to 24 characters | 50 characters | | Copy | 32 to 48 characters | 100 characters | | Single-image ad | 1 square image | PNG or JPG, up to 1200 x 1200 | | Multi-image ad | 4 to 6 square images | One landing page, "Learn more" button | Each ad also shows your advertiser name and logo. The multi-image format opened as a beta on 26 October 2026. Limits are from OpenAI's [bulk upload checklist](https://help.openai.com/en/articles/20001218-bulk-upload-campaign-schema-checklist) (checked 2026-10-31). ## Steps 1. **Start from one need.** Pick the problem a buyer has when they ask ChatGPT about your category. 2. **Write the title as the value.** Say what it is or what it does. "Pre-seasoned iron tawa" beats "Cook like never before". 3. **Make the copy add something.** Give a detail the title did not: who it is for, a price, a proof point. Do not repeat the title. 4. **Write at least three versions.** Each one takes a different angle, such as the result, the material and the use case. 5. **Pick an image that matches the words.** Keep it simple and clear. Avoid abstract or busy pictures. 6. **Link to the page that sells this one thing.** Use a product or category page, not the homepage, and add UTM tags. For angle ideas, see [how to write ad hooks](/guides/how-to-write-ad-hooks). ## A worked example: three angles Say you sell a INR 1,899 cast-iron tawa online. Three ads, one product: | Angle | Title | Copy | |---|---|---| | Result | Pre-seasoned iron tawa (22) | Cooks crisp dosas from day one, no seasoning (44) | | Material | A tawa that lasts years (23) | Solid cast iron, no coating to chip or peel (43) | | Use case | Works on induction too (22) | Flat cast-iron base heats evenly on any stove (45) | The numbers in brackets are character counts. All six lines sit inside OpenAI's recommended ranges. More filled-in sets are in [ChatGPT ads examples](/templates/chatgpt-ads-copy-examples). ## What OpenAI may rewrite Since 30 October 2026, creative enhancements are on by default. OpenAI may write new headlines and descriptions for a chat, translate them, resize your images or send people to a different page on your site. You do not see each version first ([details](https://help.openai.com/en/articles/20001614-creative-enhancements-for-chatgpt-ads)). Keep prices and stock on your pages current, or switch it off in **Manage settings**. ## Mistakes that get ads rejected - Claims you cannot back up, about results, prices or comparisons ([ad policies](https://openai.com/policies/ad-policies/)). - Ads styled to look like part of ChatGPT itself. - A landing page that blocks OAI-AdsBot, OpenAI's ad crawler. - A category OpenAI does not take yet, such as alcohol, gambling or dating. Financial and health services outside the US are generally not allowed. ## FAQ ### How long can a ChatGPT ad title be? 50 characters at most. OpenAI recommends 16 to 24. ### How many ads should one ad group have? OpenAI does not give a number. It asks for a high volume of distinct ads, so start with three or more, each on a different angle. ### Can I see the versions OpenAI writes? No. Creative enhancements run without a preview of each version. Switch them off if you need every word approved. --- - [More ChatGPT ads articles](https://marxx.ai/library-guides/category/chatgpt-ads) - [All articles](https://marxx.ai/library-guides)