Perplexity

AI answer engine with cited sources — great for research without the hallucinated citations. Runs student promotions on Pro.

Best for: Research where you need to see where facts came from

What you get

• Free tier: unlimited quick searches with cited sources
• Pro: more advanced searches per day, file uploads, and model choice
• Education Pro: $10/mo for verified students and educators — half the regular Pro price (SheerID verification, any email)

How students use it

• Scope a paper topic and follow the inline citations to real sources
• Fact-check a claim and get the link, not just an answer
• Compare how different sources frame the same question before you write