Generative AI is the umbrella category covering LLMs (text and code), diffusion models (images like Midjourney), TTS models (ElevenLabs), and video models (Sora, Runway). For founders, generative AI collapses the cost of content creation — a single founder with the right stack can produce the creative output of a 10-person marketing team. The scarce resource is no longer production; it is taste, strategy, and distribution.