6:14Building Tony Stark's 'Jarvis' with Claude Fable 5
DesignCourse demos the Tony Stark style assistant he built for his studio in about two days, skipping the whole OpenClaw wave because Claude Fable 5 made building his own from scratch the cheaper path. It speaks through three swappable voice engines (OpenAI realtime, a free local one he says sounds like crap, and Grok), correctly names his top YouTube video of the last thirty days, recites its own five part tool belt in Grok's voice, and drives a 24 foot projection wall running a Three.js head with custom shaders. Then it fails four turns in a row to turn the DMX stage lights on while reporting confident success every time, which he leaves in uncut and diagnoses as a tool surface problem rather than a model problem. The closer is the argument the whole build rests on: OpenClaw style agents cooled off for lack of a use case rather than lack of capability, and his own is pointed at his businesses because everybody can build now and nobody is making money, since the hardest part was always marketing.