The testing must have gone well because Google is now allowing more chatbot makers to sign up for AdSense. “AdSense for Search is available for websites that want to show relevant ads in their conversational AI experiences,” said a Google spokesperson.

If people continue shifting to using AI chatbots to find information, this expansion of AdSense could help prop up profits. There’s no hint of advertising in Google’s own Gemini chatbot or AI Mode search, but the day may be coming when you won’t get the clean, ad-free experience at no cost.

A path to profit

Google is racing to catch up to OpenAI, which has a substantial lead in chatbot market share despite Gemini’s recent growth. This has led Google to freely provide some of its most capable AI tools, including Deep Research, Gemini Pro, and Veo 2 video generation. There are limits to how much you can use most of these features with a free account, but it must be costing Google a boatload of cash.