FaithLens, an 8B-parameter model, detects faithfulness hallucinations with explanations and outperforms GPT-5.2 and o3 on 12 tasks after synthetic data curation and rule-based reinforcement learning.
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FaithLens: Detecting and Explaining Faithfulness Hallucination
FaithLens, an 8B-parameter model, detects faithfulness hallucinations with explanations and outperforms GPT-5.2 and o3 on 12 tasks after synthetic data curation and rule-based reinforcement learning.