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Lesson 02 of 066 min

How AI Works

A chatbot does not look answers up like a book. It has learned patterns from huge amounts of text and predicts what a good answer probably looks like, word by word.

In this lesson you will

  • Describe how an AI model is trained and used
  • Understand why AI answers can sound right but be wrong

How it works

From examples to an answer

  1. ExamplesHuge amounts of text and images
  2. TrainingLearns patterns
  3. Your promptWhat you ask
  4. PredictionThe most likely answer

Because it predicts likely words, an AI is very good at sounding fluent and confident. But “likely” is not the same as “true”. If the examples it learned from were wrong, old or one-sided, its answer can be too.

Real-life example

Fluent, but is it right?

AI assistant

AI assistant

The capital of Australia is Sydney, the country’s largest and best-known city.

Read it carefully. How many warning signs can you find before you inspect it?

Tap to reveal

Why AI gets things wrong

Tap each card to flip it.

Test yourself

Quick check

0 of 2 answered

  1. 01How does a chatbot produce an answer?
  2. 02An AI answer sounds confident. What does that tell you?