Last reviewed
Correct answer: A. The release came after the model's knowledge cutoff date
Explanation
The principle — every Claude model has a knowledge cutoff, and anything after it is missing rather than remembered badly.
Why the key is correct — Anthropic states that each model has a knowledge cutoff, and that models may not be aware of events or information that occurred after their cutoff dates. A phone released last month falls on the far side of that line, so Claude answers from older, similar handsets and sounds no less certain for it.
Why the others are wrong — nothing makes Claude avoid new subjects on purpose, the length of the question is not what failed, and the model is not retrained overnight from the live web.
Remember this — for anything recent, hand Claude the material or switch web search on rather than trusting recall.
Sources — Anthropic on how up to date Claude's training data is, and its web search guidance.
Sources
“These models may not be aware of events or information that occurred after their respective cutoff dates.”
“Web search expands Claude's knowledge with real-time data, helping you make better-informed decisions with current information.”
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