AI assistants are helpful, fast and usually right about everyday things. But they don’t look facts up the way a person would. They predict what a good answer sounds like. Most of the time that works well. Sometimes it means an answer is confidently wrong. Here’s how to tell.
Why AI gets things wrong
An AI assistant learned from a huge amount of text. When it doesn’t know something, it doesn’t always say so. Instead, it fills the gap with something that sounds likely. That’s why a wrong answer can look just as polished as a right one.
The three most common mistakes
| Mistake | What it looks like | What to do |
|---|---|---|
| Made-up facts | A statistic, quote, book title or link that sounds real but isn’t | Check important facts with a trusted source |
| Outdated information | Old prices, opening hours, rules or news | Check the official website, or use an assistant that searches the web and shows sources |
| Bias | One-sided answers or stereotypes | Ask: “What other viewpoints are there?” |
Warning signs to watch for
- Very specific details with no source: exact numbers, dates, names of studies or people.
- Anything that changes often: prices, schedules, laws and recent events.
- Claims that seem too neat or too surprising to be true.
Practice spotting mistakes
Step 4 of AI Essentials is a quick Spot the Mistake game.
Your 3-second check
Before you use or share an AI answer, ask yourself three questions:
- Is this important? Health, money, legal, work, or something you’ll share publicly.
- Could it be out of date?
- Can I check it with one trusted source?
If the answer to the first question is yes, always do the third. It takes seconds, and it’s the habit that separates confident AI users from everyone else.
Make AI check itself
You can also ask the AI to help. Try: “Which parts of your answer are you least sure about?” or “What sources would confirm this?” It won’t replace your own check, but it often points you to the parts that need one.