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Discover▾

Not sure where to start? This week’s hottest software, models and stacks in three minutes.

AI Apps▾

AI software people use: from assistants like ChatGPT to tools for coding, video and workflows, picked by purpose.

For Agents▾

Software for AI: tools that let your agent (Claude Code, Codex, Cursor…) browse, read docs, run code and remember.

Models▾

Choose models, estimate cost, self-host: prices, rankings, benchmarks, free tiers and compute.

Solutions▾

A goal or an error message? Ready-made stacks, steps and fixes by scenario.

Learn▾

A systematic course from zero to the frontier, with an algorithm library, must-read papers and tutorials.

Frontier▾

Daily AI news, weekly highlights, the latest papers and how AI is changing every discipline.

AI & LLM Basics

Why LLMs Hallucinate

Where confident-but-wrong answers come from and practical ways to reduce them.

Beginner 12 min For: Beginners / Developers ✎ In progress

✎ This lesson is still being written. Below is the planned outline; it is not indexed by search engines yet.

What this lesson will cover

  1. Probabilistic generation and missing knowledge
  2. Training incentives that reward guessing
  3. Grounding with retrieval and citations
  4. Checking answers with tools

Related AI news

Links go to the original publishers.

Part of these paths

① Beginner Path: Understand AI

Data updated: Learn AI curriculum · Lesson news(UTC+8)