OpenAI is starting to stuff the free version of ChatGPT with ads. So, I spent this week asking ChatGPT 500 questions on the mobile app to get a sense of how these new ads look as they roll out to more users in the US. My questions were loosely based on how OpenAI says people use its generative AI tool, like for seeking information or requesting practical guidance. In my rough tests, the ChatGPT ads felt quite frequent. About one out of every five questions in a new conversation thread triggered an ad at the bottom of the chatbot’s output. These ads always included a website link as a button and were tailored to the general topic of my question. As OpenAI continues to experiment with ads in ChatGPT, the formatting and the frequency of these ads may change. “Because ChatGPT is a trusted and personal environment for many people, we’re intentionally rolling ads out slowly,” an OpenAI spokesperson tells WIRED.…