Session 06: AI-Powered Research with Perplexity

You've now spent time with ChatGPT, Gemini, and Claude — three conversational AIs that are excellent at explaining, brainstorming, and writing. Today you'll meet a fundamentally different kind of AI tool: Perplexity. While the others generate responses primarily from knowledge learned during training, Perplexity actively searches the web in real time and then provides citations for the sources it used. This makes it a powerful research assistant for anyone doing academic work.

Why does citing sources matter so much? In academic work, a claim without a source is an opinion. A claim with a source is evidence. When you're writing a graduate paper, your committee will want to see that your arguments are grounded in real research, published by credible authors and institutions. Perplexity helps bridge the gap between 'I wonder if this is true' and 'I can point to three peer-reviewed sources that support this claim.'

Here's how Perplexity works: you type a question, it searches the current web, and it generates a response that draws directly from multiple sources. At the bottom of each response, you'll see numbered citations with links to the original pages. This is enormously different from ChatGPT or Claude, which might give you a confident-sounding answer that you can't immediately verify. Perplexity shows its work.

For graduate students and academic learners, Perplexity is most useful for literature discovery — finding existing research and authors in your field — and for fact-checking claims you've encountered elsewhere. It's not perfect: it can still make mistakes, and not every source it cites will be a peer-reviewed journal article. But the citations give you a starting point for real academic verification, which is far better than a sourceless response.

One important caveat: Perplexity is a research starting point, not an endpoint. In graduate academic work, you'll still need to access the original sources, read them yourself, and evaluate their quality. Think of Perplexity as the world's most efficient research assistant who can scan the internet in seconds and hand you a curated list of leads. Following up on those leads — reading the actual articles — is still your job.

Today you'll use Perplexity to research a topic related to your academic interest. You'll practice the essential skill of verification: clicking through to at least two of Perplexity's citations to confirm that the source exists, that the information is accurately represented, and that the source is credible. This verification habit is one of the most important skills you can develop as an AI-era scholar.