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Large Language ModelsarXiv cs.CLPublished: Apr 16, 2026, 13:00 JST

Researchers discover that language models larger than 1 billion parameters show detectable hallucination signals before generating any text, revealing a critical scale threshold for factuality awareness.

Researchers discover that language models larger than 1 billion parameters show detectable hallucination signals before generating any text, revealing a critical scale threshold for factuality awareness.

Study analyzed 7 autoregressive transformers ranging from 117M to 7B parameters to understand when LLMs decide to hallucinate

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