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# OpenAI details ChatGPT ad format, pricing and auction mechanics
- URL: https://www.medianexis.com/openai-details-chatgpt-ad-format-pricing-and-auction-mechanics/
- Published: 2026-10-11T01:39:12.000Z
- Updated: 2026-10-21T13:21:16.000Z
- Description: Help.openai.com explains that ChatGPT Ads run below responses using advertiser name, headline, copy and image, sold via impression or valid-click billing with a relevance-weighted second-price auction.
- Author: The Signals Desk
- Tags: Ad-tech, AI, OpenAI ChatGPT ads basics/help center update

**Why it matters.** Buyers evaluating ChatGPT as an ad channel now have a documented free-tier-only inventory pool and auction model to plan bids against.

*Signal from* [*help.openai.com*](https://help.openai.com/?ref=medianexis.com) *·* [*read the original*](https://help.openai.com/en/articles/20001207-ads-in-chatgpt-the-basics?ref=medianexis.com)*.*