Lesson 1077 of 1455
AI and the training data question: where did all this knowledge come from?
Understand what AI was trained on and why that shapes everything it says.
Builders · AI Foundations · ~4 min read
The big idea
AI was trained on a huge slice of the public internet, books, and code. That's why it's good at famous topics and weak at obscure ones. Understanding the training data explains a lot of AI behavior.
How to use it
- Ask AI what its training cutoff date is
- Ask AI to explain Common Crawl in plain English
- Ask AI which topics are likely under-represented in training
- Ask AI about copyright fights over training data
Try it
Pick a niche topic you know well. Ask AI deep questions and grade where it's strong vs where it's clearly guessing.
Key terms in this lesson
Practice this safely
Try this with a school, hobby, or family example where the stakes are low. Use the AI output as a draft you can question, not as the final answer.
- 1Ask AI to explain training data in plain language, then underline anything that sounds uncertain or too broad.
- 2Give it one detail from "AI and the training data question: where did all this knowledge come from?" and ask for two possible next steps plus one reason each step might be wrong.
- 3Check Common Crawl against a trusted source, teacher, adult, expert, or original document before you use it.
End-of-lesson quiz
Check what stuck
8 questions · Score saves to your progress.
Lesson help
Questions are best handled with a grown-up here.
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