Dictionary term

Knowledge Cutoff

AI FoundationsBeginner

The knowledge cutoff is the date after which a model has no built-in knowledge of world events, because its training data stops there.

In plain English

An AI only knows about the world up to a certain date. Anything newer it won't know unless you give it the information.

Analogy

Like a textbook printed on a certain date; anything that happened afterward isn't in it.

Why it matters

It means Claude won't know recent prices, news, or product changes unless you supply that data via tools or grounding in your automation.

In practice

Asking about an event from last week may get an outdated answer unless you feed in current data.

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