How do AI chatbots generate 'hallucinations' or incorrect facts?

AI chatbots sometimes say things that aren’t true, it’s like when you guess wrong on a game show.

Imagine you're playing 20 Questions, and your friend is thinking of something. You ask, “Is it an animal?” They say yes. Then you ask, “Does it live in the ocean?” They say no. So you guess it's a dog. But it could be a cat or a bird, you just picked one based on what you think they said.

AI chatbots work like that too. When they answer questions, they don’t always know if their facts are correct. They make best guesses based on the clues they’ve been given. Sometimes, those guesses turn out to be wrong, just like when you guess “dog” and it was actually a bird.

Chatbots read lots of text, books, articles, websites, to learn how language works. It's like learning from a big library. But they don’t always remember which book had which fact. Sometimes, they mix up facts from different sources. That’s why you might get answers that sound right but aren’t quite true.

It’s kind of like mixing up your lunch, if you take the sandwich from your friend and eat it thinking it's yours, you might be surprised when you taste something new! AI chatbots sometimes say things that aren’t true, it’s like when you guess wrong on a game show.

Imagine you're playing 20 Questions, and your friend is thinking of something. You ask, “Is it an animal?” They say yes. Then you ask, “Does it live in the ocean?” They say no. So you guess it's a dog. But it could be a cat or a bird, you just picked one based on what you think they said.

AI chatbots work like that too. When they answer questions, they don’t always know if their facts are correct. They make best guesses based on the clues they’ve been given. Sometimes, those guesses turn out to be wrong, just like when you guess “dog” and it was actually a bird.