Knowledge cutoff
The date after which the model’s weights don’t include the web. Anything newer needs browsing or RAG.
Launches after cutoff must be fetchable or they “don’t exist.”
People still talk as if cutoff is a moral failing. It’s a training schedule.
Examples
- You launched last week. Memory mode invents the old SKU. Search mode gets it right. Track both.
Related terms
ChatGPT Search is OpenAI’s live web retrieval inside ChatGPT. It is a different beast from “what GPT remembers about you.”
What the model stored in its weights. No URL. Hard to update. Easy to be stale or confident and wrong.
RAG means the model looks up documents at answer time instead of relying only on what it memorized in training.
FAQ
Where do I see cutoff? +
Vendors sometimes publish it. Don’t trust a number from a tweet. Test with a dated fact.
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