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What is hallucination in LLMs and why does it happen?

Hallucination is when an LLM generates confident-sounding but factually incorrect or fabricated information. It happens because LLMs are trained to produce plausible next tokens based on patterns — not to…

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What is hallucination in LLMs and why does it happen?

COVER // WHAT IS HALLUCINATION IN LLMS AND WHY DOES IT HAPPEN?

Hallucination is when an LLM generates confident-sounding but factually incorrect or fabricated information. It happens because LLMs are trained to produce plausible next tokens based on patterns — not to retrieve verified facts.

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