In a blog post on Friday, Perplexity introduced a new tool called Deep Research that it says can conduct “in-depth research and analysis” to deliver detailed reports in response to your questions, and it’s free for limited use. It comes just a couple of weeks after OpenAI announced its own Deep Research feature for ChatGPT Pro users… which itself followed Google’s December announcement of Deep Research for Gemini. Perplexity’s tool is available only on the web to start, but it will hit
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