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StartLesson 4 · What a model knows (and makes up)

Before you start

About 71 minutes · 12 steps
What you'll do
See why a model makes things up about Northgate, then fix it: write the assistant's rules, give it the right policy with each question, and prove on a real model that it answers or refuses correctly.
Why it matters
A confident wrong answer about a bank's policy is worse than no answer at all. This fix is the base the rest of the course builds on.
What you'll walk away with
  • What "hallucination" means in plain words, and what causes it
  • Rules that make the assistant answer only from the policy, and say so when it can't
  • An assistant that answers from the policy file you give it
What “done” looks like
  • The tests for Write the assistant's rules and Give it the policy pass
  • The live tests pass on a real model ("5 passed")
  • 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 12 steps in this lesson
  1. 1· 1 min
  2. 2· 4 min
  3. 3· 4 min
  4. 4· 6 min
  5. 5· 5 min
  6. 6· 1 min
  7. 7· 20 min
  8. 8· 20 min
  9. 9· 4 min
  10. 10· 3 min
  11. 11· 2 min
  12. 12· 1 min