Perplexity’s AI Agent Now Has a Brain That Learns From Its Own Mistakes
In brief Perplexity launched Brain, a memory system for Computer that builds a context graph of past sessions, sources, and corrections—then synthesizes it overnight into a personal LLM wiki loaded before each new task. Perplexity’s own early metrics show Brain boosts answer correctness by 25% on repeated tasks, recall by 16%, and cuts the cost…