OpenAI is rolling out advertising to ChatGPT users across 31 European countries starting this week [1], [2].

The move signals a shift in the company's monetization strategy as it seeks to diversify revenue streams. By introducing ads, OpenAI can offset the high costs of running large language models while maintaining a free entry point for millions of users.

Reports indicate the rollout is scheduled for Aug. 24, 2026 [4]. The expansion includes the Netherlands and 30 other European markets [2], [3], [5]. This represents the largest expansion of the advertising feature to date [6].

Not all users will see the new advertisements. The ads will be displayed to those on the Free and Go tiers [2]. Users who pay for Plus, Pro, or Enterprise subscriptions will remain in an ad-free environment [2].

The timing of this launch coincides with OpenAI's preparation for a potential initial public offering. The company is reportedly eyeing a valuation of nearly $1 trillion [1]. Generating additional revenue through an ad-supported model is a common step for tech companies looking to maximize their financial standing before entering the public market [1], [4].

OpenAI has not provided specific details on the format of the ads, whether they will appear as banners, suggested prompts, or integrated responses, but the company said the rollout is focused on the European region for now [1], [5].

OpenAI is rolling out advertising to ChatGPT users across 31 European countries.

This transition marks ChatGPT's evolution from a pure subscription-based tool to a hybrid platform. By implementing a tiered ad system, OpenAI is adopting the 'freemium' model used by search giants like Google. This strategy allows the company to scale its user base in Europe while creating a high-margin revenue stream that could make the company more attractive to public investors.