The monetization path of large AI models has new developments. Recently, there was an interesting event—someone tested adding advertising features to the free version and some other versions. The underlying logic is quite realistic: there are many people who want to use AI, but not everyone is willing to pay. So, advertising has become a compromise solution. However, they emphasized one point—answers will never be altered for the sake of advertisers' money, and users' conversation content will not be seen by advertisers. In simple terms, they aim to find a way for free users to access AI while protecting user experience and privacy. Whether this business model can succeed depends on market response. But it indeed reflects a trend: free + advertising is becoming a new way for the AI industry to explore monetization.