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LLM Failure Modes·Artificial Intelligence
semantic drift

semantic drift

/sɪˈmæntɪk ˌdrɪft/

⚠️ LLM Failure Modes

subtle shifts in meaning of key terms through a conversation

semantic drift in a sentence

“Semantic drift changed what 'the system' referred to mid-discussion.”

Origin of semantic drift

Greek sēmantikos significant + Old Norse drífa to drive

Related Words

overconfidence

expressing certainty beyond what the model's actual knowledge warrants

hallucination

generating plausible-sounding but factually incorrect or fabricated information

sycophancy

over-agreeing with users and telling them what they want to hear rather than the truth

confabulation

filling gaps in knowledge with plausible but invented details

instruction drift

gradually deviating from initial instructions over long conversations

mode collapse

converging to repetitive or generic outputs regardless of varied inputs

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