The best AI tools for students help you understand and study faster — used honestly. ChatGPT and Gemini for explanations, NotebookLM for your own sources, Perplexity for cited research, and Grammarly and QuillBot for writing. Always follow your institution’s AI policy.
At a glance
| Tool | Best for |
|---|---|
| ChatGPT | Explanations + study help |
| NotebookLM | Study your own sources |
| Perplexity | Cited research |
| Gemini | Guided learning |
| Grammarly | Writing polish |
| QuillBot | Paraphrasing + citations |
Prices are USD and current as of June 2026 — verify on the official page.
The top picks
- ChatGPT — great for step-by-step explanations and drafting; free tier available.
- NotebookLM — answers grounded in documents you upload, with audio overviews; widely free.
- Perplexity — sourced answers for essays and research; education discounts exist.
- Gemini — step-by-step understanding and Google Docs integration; generous free tier.
- Grammarly — grammar, style and rewriting; free tier plus Pro.
- QuillBot — affordable paraphrasing and citation tools.
How to choose
Use AI to learn, not to cheat. Most institutions treat undisclosed AI use in submitted work as misconduct, and ‘humanizer’ tools that defeat AI-detectors are a policy risk. AI also fabricates facts and citations, so verify everything. Pick a general assistant for explanations, NotebookLM for your own materials, and Perplexity for sourced research.
If you find yourself juggling a separate subscription for chat, automation, transcription and image generation, one option worth knowing is a single platform that runs them together — osFoundry is one such agentic AI platform that consolidates chat, agents and internal apps in one workspace, with a bring-your-own-key model so you choose the underlying AI.
Related reading
This article is general information, not professional, legal or financial advice. AI tools, prices and availability change fast — verify current details on the official source before you rely on them.