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StartLesson 1 · What an LLM actually is

Before you start

About 48 minutes · 11 steps
What you'll do
Find out what a large language model (LLM) really is, see exactly what your app sends to one and what comes back, then write the one function that makes every call.
Why it matters
Everything else in this course sits on top of a model call. If you know what goes in and what comes out, you can explain and fix what the assistant does.
What you'll walk away with
  • A plain explanation of where a model's knowledge comes from, and why it doesn't know Northgate
  • The parts of a request and of a response
  • Your first working model call: call_model()
What “done” looks like
  • The tests for Your first model call pass
  • You've seen a full answer come back through your code
  • You've answered the two quick questions

Already comfortable with this? You can skip the explanations and go straight there; the tests tell you whether your code is right.

All 11 steps in this lesson
  1. 1· 2 min
  2. 2· 3 min
  3. 3· 4 min
  4. 4· 3 min
  5. 5· 6 min
  6. 6· 7 min
  7. 7· 2 min
  8. 8· 15 min
  9. 9· 3 min
  10. 10· 2 min
  11. 11· 1 min