I built a demo of what AI chat will look like when it's "free" and ad-supported

A developer created a working demonstration of ad-supported AI chat that showcases how free AI assistants might operate through advertising revenue, featuring eight different ad formats including sponsored responses, banner ads, freemium paywalls, and contextual product placements. The educational tool highlights the trade-offs between free AI services and user experience, showing how conversation data could be used for targeted advertising while responses might be optimized for ad clicks rather than user value.