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Artificial intelligence.

Models, tools and the ideas behind intelligent systems.

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Figure 1 — A laptop with a graduation cap surrounded by glowing AI assistant orbs
AI

Free AI tools every student should actually use

ChatGPT, Gemini, Claude, Perplexity and NotebookLM all run free for students — plus the student-only deals worth claiming and the expired promos to ignore.

9 min read
Graphic editorial cover: AI answers. Grounded in. documents.. AI compute appliance beside paper records and storage cartridges
AI

Why retrieval makes AI more useful

How semantic search connects an AI answer to relevant documents—and why finding a source is only the beginning of checking a claim.

9 min read
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