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A comprehensive guide to Perplexity AI's core strengths and advanced usage, covering Focus modes, Collections, Deep Research, and practical tips to become a Power User for efficient research and decision-making.

Deep dive into Perplexity AI: real-time web search + multi-model AI, transparent citations, Focus Modes, PDF chat, and collaborative Collections. Can it replace Google and ChatGPT?

Andrew Ng and LangChain CEO Harrison Chase present AI Agents in LangGraph, covering five core agent design patterns and LangGraph's graph-based framework for building cyclical agentic workflows.