Knowledge Cutoff
Definition
The date after which an AI model has no training data. If a model has a knowledge cutoff of April 2024, it genuinely does not know about anything that happened after that date — elections, product launches, news events. Some tools compensate by connecting to the internet for current information, but the base model itself stops at that line.
Why It Matters
If an AI gives you outdated information, it's not lying. It literally doesn't know. Check whether your tool can browse the web for current data.
What does that look like in practice?
You ask about a news event from last week and the AI hasn't heard of it, because that date sits past its knowledge cutoff.
What people actually mean when they say this
When someone says 'the AI is out of date,' they usually mean the question falls past its knowledge cutoff, the point where its training data stops.
Last reviewed: March 2026
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