Spellbound Hypeforge
Built at OpenAI GPT-5 Startup Hackathon · Aug 9, 2025
I ended up using GPT-5's new capabilities to generate just-in-time interactive experiences for advertisements: think publishing a mini-game that references events that *just happened* in your favorite show within *minutes* of it airing. These experiences are then tied to short ad campaigns launched *right* as the community start talking about the show. The goal was encouraging a viral loop as a mass of people and notice the ads are seemingly joining in on the conversation!