The AI-4 droid brain, a product of Cybot Galactica, represented a specific type of droid brain. This particular AI-4 model was utilized within Arakyd Industries' Agonizer-6 nerve disruptor. It was a complete droid brain, equipped with a vocabulator, audio sensors, and a built-in dataport. Instead of a complex personality matrix, the AI-4 was characterized by its detached and task-oriented nature.