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Home/Research Paper Library/The Internal State of an LLM Knows When It's Lying

The Internal State of an LLM Knows When It's Lying

Showed that activation probes can detect false statements, a basis for hallucination and lie detectors.

lie detectionprobes

Research question

Do hidden states encode whether a generated statement is true?

Key findings

A classifier on hidden activations predicts statement truth with 71-83% accuracy - Works for statements the model itself generates

Sources

arxiv.orghttps://arxiv.org/abs/2304.13734

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