Arena Engineers Race to Build App from Napkin Sketch

Arena.ai shared a split screen video of two company engineers named Graham and Logan. Each started from the same napkin sketch and used Agent Mode to produce a working taco truck waitlist app. The exercise tested which engineer delivered the stronger result and included a build versus buy recommendation. The official company post presents the footage as a direct comparison of agent output on one prompt. The video runs nineteen seconds and shows the parallel development process from sketch to finished application.