What is Hallucination?
When an AI states something confidently that is not true. It can invent function names, package names, or facts that do not exist.
bin empty · part delivered anyway
An AI hallucination is a response that...
Write it in your own words in the app.
In real work
Watch for hallucination. Do not make up function names. If you are not sure a method exists, say so and I will look it up.
In the illustration
The picker goes to the bin for the part you asked for, finds it empty, and still delivers a polished part to the tray: confident output with nothing behind it.
Check this answer from your model for any hallucination: verify every package name and function it cites against the docs I attached, and mark the ones it invented.
Try it now
The fastest way to learn a word is to use it. Open this line in the agent you already work in and watch what it does. Change the tool to the one you use.
Go further
01Practice
Make it stick
One term a day, a short quiz, and sentence practice that checks your own words.
02Verify
Prove you know it
Pass the quiz and keep it in a Skills Wallet you can share with anyone who needs proof.
03Career
Find the work that uses it
See which roles lean on this vocabulary, and what they pay in year one.
More in Prompting
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