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October 21, 2026 ai_technology research

Fluent but Fallible: Benchmarking Hallucination and Factual Reliability in Large Language Models

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arXiv:2610.27034v1 Announce Type: new Abstract: Large Language Models (LLMs) have significantly advanced natural language processing and artificial intelligence applications through their capabilities in reasoning, text generation and knowledge retrieval. However, LLMs are still vulnerable to two important challenges: hallucination, generating factually incorrect or fabricated content, and response deviation, meaning systematic deviations from ground-truth responses. These limitations raise seri

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