Perplexity and ChatGPT are two of the most popular AI tools on campus, but they're built for different jobs. Perplexity is an AI answer engine that searches the web and shows numbered citations, which makes it handy for finding sources. ChatGPT is a general-purpose assistant for explaining concepts, brainstorming, working through problems and giving feedback on drafts. Here's how their free and paid plans compare for college students.
you mostly need to research a topic, find sources quickly and see exactly where each answer came from — and you can verify as a student for discounted Education Pro.
you want a study partner that explains concepts step by step, quizzes you, helps you work through problems and gives feedback on your own drafts.
| Feature | Perplexity | ChatGPT |
|---|---|---|
| Main focus | AI search engine with cited answers | General-purpose AI assistant for explaining, brainstorming and feedback |
| Free plan | Yes — cited answers with basic models and limited daily usage of advanced features | Yes — core chat with limits on messages, file uploads and image creation |
| Lower-cost plan | Education Pro for verified students: about $10/month (verification via SheerID) | ChatGPT Go: $8/month in the US (10x the Free plan's messages, file uploads and image creation) |
| Main paid plan | Perplexity Pro: $20/month | ChatGPT Plus: $20/month (more advanced reasoning models, higher limits) |
| Top tier | Perplexity Max: $200/month | ChatGPT Pro: higher-priced plans for heavy users |
| Citations | Every answer shows numbered sources you can click | Can search the web and link sources when it does, but many answers come from the model without citations |
| Study features | Learn Mode for verified students: guided explanations, flashcards, quizzes and free-response practice | Study mode: guided, step-by-step learning that asks questions instead of just giving answers |
| Ads | Check Perplexity's site | OpenAI has said it is testing ads on Free and Go in the US; Plus and higher are ad-free |
| Student discount | Education Pro for verified students | No ongoing US student discount at the time of writing |
Prices and features from each company's official pages and help docs as of October 2026. They change often — check the official site before you buy.
Best for: researching topics and finding sources fast
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:
Perplexity is our pick for research because it shows its sources, but no AI tool is perfect. Read the original sources yourself and follow your instructor's policy on AI use.
Best for: explaining concepts, practice and feedback on your drafts
ChatGPT is OpenAI's general-purpose assistant. Students use it to explain difficult concepts in plain language, work through practice problems, brainstorm essay angles and get feedback on drafts they wrote themselves. Study mode turns it into a tutor that asks questions and guides you step by step instead of handing over answers. The Free plan has message and upload limits; ChatGPT Go ($8/month in the US) raises those limits, and ChatGPT Plus ($20/month) adds more advanced reasoning models and higher limits.
Why students use it:
AI tools can help you research and understand material, but submitting AI-generated text as your own can violate academic integrity rules. Check your syllabus and your instructor's AI policy, verify every fact and citation, and cite the original sources — not the AI.
Read our guide on how to use AI for research papers and our Jenni AI vs QuillBot comparison.