Until now, ChatGPT's business model has been straightforward: a free tier with usage limits, paid Plus and Pro subscriptions for heavier users. That picture is starting to change.
OpenAI is building the technical and legal groundwork to serve ads inside ChatGPT for European users. The EU angle has specific logic - Europe's Digital Markets Act and GDPR create stricter requirements around ad targeting and user consent than US regulations. Starting there is either a deliberate stress-test in the hardest regulatory environment, or a response to pressure from European markets to make the free tier financially self-sustaining without subscriptions alone.
Ads would create a third lane for ChatGPT: free access funded by advertisers rather than users. The tension in that model is straightforward. A significant portion of ChatGPT's user base chose it specifically because it doesn't show ads. An ad-supported tier - even if kept optional alongside paid plans - changes what the product is for people who don't pay a monthly fee.
OpenAI hasn't confirmed timelines, ad formats, or targeting capabilities. The infrastructure work is the clearest public signal yet that advertising is being built into the product's future. Given that OpenAI is reportedly operating at a significant loss at current scale, finding a revenue path that doesn't require every user to pay a monthly subscription makes financial sense - even if it creates a meaningfully different experience for free users.