DataFunTalk

Oct 7, 2025 · Artificial Intelligence

Can Reinforcement Learning Spot Hallucinations in LLMs? Introducing RL4HS

Apple’s new paper presents RL4HS, a reinforcement‑learning framework that uses span‑level rewards and class‑aware policy optimization to detect hallucinated text spans in large language models, outperforming GPT‑5 and other baselines and offering more precise, auditable error identification.