tech
Perplexity AI
Perplexity is a free AI-powered answer engine that provides accurate, trusted, and real-time answers to any question.

TL;DR
- Brain is a new self-improving memory system for AI agents.
- It reviews a context graph of the AI's work to teach itself how to improve.
- Unlike traditional AI memory focused on users, Brain remembers what the agent did, learned, and failed at.
- This 'work memory' helps the agent get better at its job over time.
- Brain creates a map of user goals based on past sessions, improving Computer's starting point for new tasks.
- The system learns from mistakes, user corrections, and dead-end sources, reducing the need for multiple turns and model calls.
- A 'living context graph' or LLM wiki is formed, which is updated overnight.
- Early results show a 25% increase in answer correctness for seen tasks and a 16% increase in recall.
- Brain cuts the cost of tasks requiring historical context by 13%.
- This continuous learning enables AI to become more proactive.
- Brain is rolling out to Max and Enterprise Max subscribers in Research Preview.