ChatGPT Rapidly Increases Ad Density for Free Users
Advertising within ChatGPT is expanding quickly, with new data from Sensor Tower revealing a 163% surge in the average number of ads shown per hour of use by American users between April and August 2026. This increase reflects a rise in ad density, not necessarily the number of advertisers or total ads sold, with the metric growing by approximately 26% monthly during the period.
This expansion coincides with a significant partnership between OpenAI and Amazon Ads. Select U.S. advertisers can now extend their Amazon DSP campaigns to display ads within ChatGPT. Delta Vacations is among the initial companies participating in this trial, aiming to reach users during their decision-making process. For instance, a user planning a vacation might see a relevant travel ad below a ChatGPT response.
OpenAI retains control over ad placement, determining which ads are suitable and in what context, while Amazon does not unilaterally decide ad placement within conversations. OpenAI also operates its independent Ads Manager platform, allowing businesses to create campaigns, set budgets, and track performance. Ads are displayed below ChatGPT's responses, clearly separated, and can include advertiser name, headline, text, link, and an image. OpenAI asserts that ads do not influence the AI's generated answers.
Advertising is not universally applied; ads may appear on Free and Go tiers but are excluded for Plus, Pro, Business, Enterprise, and Edu subscribers, as well as users under 18. The advertising initiative has also expanded beyond the U.S. to dozens of European countries in August, with independent Ads Manager access opening there. However, Israel is not yet among the countries with independent Ads Manager availability.
In essence, ChatGPT is evolving into an advertising platform. The substantial increase in ad density and the Amazon partnership signal rapid growth in this area. Users on free or Go tiers are likely to encounter more ads as the system expands, while paying subscribers continue to experience an ad-free service.
