Vibe Coding a 7-DOF Robot Arm with GPT 5.5 Codex Goes Viral: 3K Likes, 241K Views

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A viral tweet (3,035 likes, 241K views) demonstrated vibe coding a full URDF 7-DOF robot arm with functional kinematics, custom GUI, and STEP parts/assembly — 100% generated in OpenAI Codex with GPT 5.5 (minus the gripper). The demo represents a significant expansion of vibe coding from web apps into robotics and mechanical engineering, showing AI coding tools crossing into hardware design domains previously requiring specialized CAD expertise.