Perplexity AI

Complete guides and comparisons for Perplexity AI. See how it compares to ChatGPT, NotebookLM, and other AI research tools.

• GPT-5.2 Deep Research: Website Search & What It Means

  10 Feb, 2026

  OpenAI upgrades Deep Research to GPT-5.2 with website-specific search. We compare it to Perplexity, break down what changed, and when to actually use it.