Large language model
A large language model is an AI trained on huge amounts of text, so it can read and write like a person.
In a simple example
When you ask it to write a menu description, it uses what it learned from a lot of text to write a good one.
Why it matters to you
It is the engine inside most AI tools, so knowing what it is helps you trust it the right amount.
Do not confuse with
It predicts likely words. It does not look facts up, so it can be wrong while sounding sure.