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Perplexity launched Brain, a self-improving memory system for its agent product, Computer. Brain builds a context graph of the agent's work and reviews it overnight to teach itself how to perform better. It remembers what the agent did, not the user's preferences.

Perplexity shipped Brain, a self-improving memory layer for its AI agent. Brain tracks what the computer did, what worked, and what failed, then uses that data overnight to make the next task faster and cheaper. The system learns from its own mistakes without human intervention.

Perplexity's Computer platform, launched in 2026, lets users describe an outcome and the system breaks it into steps, routing tasks to models like Claude, Gemini, and GPT-5. Personal Computer runs 24/7 on a local device like a Mac mini, acting as a persistent digital proxy with security logs and a kill switch.

Perplexity CEO Aravind Srinivas said on a podcast that fear of failure is the stupidest thing holding people back. Srinivas, who cofounded the AI company in 2022, focuses on the thrill of winning. He stated he came from nothing and has nothing to lose.
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