Perplexity and Google Gemini both answer questions with AI, but they're built for different jobs. Perplexity is an AI search engine that cites a source for every answer, while Gemini is a general assistant connected to Google apps and Gemini Notebook. Here's how they compare for students.
| Feature | Perplexity | Gemini |
|---|---|---|
| Main focus | AI search engine with cited answers | General AI assistant connected to Google apps |
| Free plan | Cited answers with basic models and limited use of advanced features | Gemini app with Deep Research and 15 GB storage |
| Low-cost plan | Education Pro for verified students: about $10/month | Google AI Plus: $4.99/month |
| Main paid plan | Pro: $20/month | Google AI Pro: $19.99/month |
| Student offer | Education Pro discount (SheerID) | One free year of Google AI Pro for eligible US college students, redeem by Dec 31, 2026 (payment method required) |
| Citations | Every answer shows numbered sources | Can research the web; check that sources are shown and real |
| Study features | Learn Mode for verified students: flashcards, quizzes, free-response practice | Works with Gemini Notebook for source-based quizzes and flashcards |
Prices and features as of October 2026 — check the official site for current details
Prices and features as of October 2026 — check the official site for current details
Best for: research with numbered, clickable sources
Perplexity is an AI answer engine: you ask a question, it searches the web, and it writes an answer with numbered citations linked to the pages it used. That makes it a quick way to get oriented on a topic and find sources to read for a paper. The free plan covers cited answers with basic models and limited use of advanced features. Perplexity Pro costs $20/month, and verified students can get Education Pro for about $10/month, which also unlocks Learn Mode — a study mode with guided explanations, flashcards, quizzes and free-response practice.
Why students use it:
Best for: students who use Google apps and Gemini Notebook
Gemini is Google's AI assistant, available on the web and in mobile apps. The free plan includes Deep Research and 15 GB of Google storage. Google AI Plus costs $4.99/month and adds higher usage limits and 400 GB of storage; Google AI Pro costs $19.99/month and adds 4x the Free plan's usage limits, Gemini in Gmail and Docs, more Gemini Notebook audio overviews and 5 TB of storage. Eligible US college students can get one year of Google AI Pro free if they redeem by December 31, 2026 (a valid payment method is required and it renews at $19.99/month unless canceled).
Why students use it:
Choose Perplexity if your main need is research — fast answers with sources you can open and check. Choose Gemini if you want a general assistant that works with Google Docs, Gmail and Gemini Notebook, especially if you can use the free year of Google AI Pro for eligible US students. Many students use Perplexity for finding sources and Gemini Notebook for studying their own materials.
Cite the original sources, not the AI tool, and open every source before citing it. Both tools can make mistakes. Follow your course's AI policy and disclose AI use when required.