{"slug": "surprising-success-repeated-failure-entropy-guided-credit-assignment-for-in-llm", "title": "Surprising Success, Repeated Failure: Entropy-Guided Credit Assignment for Exploration in LLM Reasoning", "summary": "A new reinforcement learning method called Entropy-Guided Credit Assignment (EGCA) improves exploration in large language model reasoning by assigning credit at a finer granularity without auxiliary models, additional sampling, or privileged information, according to the paper. The approach targets RLVR, which enhances LLM reasoning through outcome-level feedback, and addresses the \"surprising success, repeated failure\" pattern in which models succeed on hard problems while repeatedly failing on easier ones. The work claims finer-grained credit assignment can be achieved using policy entropy alone.", "body_md": "Reinforcement learning with verifiable rewards (RLVR) enhances reasoning in large language models (LLMs) through outcome-level feedback, yet recent approaches to finer-grained credit assignment often require auxiliary models, additional sampling, or privileged information. Although policy entropy pr", "url": "https://wpnews.pro/news/surprising-success-repeated-failure-entropy-guided-credit-assignment-for-in-llm", "canonical_source": "https://aiflash.com/news/128246/", "published_at": "2026-09-29 04:00:05+00:00", "updated_at": "2026-09-29 04:19:07.996932+00:00", "lang": "en", "topics": ["artificial-intelligence", "machine-learning", "large-language-models", "ai-research"], "entities": ["Entropy-Guided Credit Assignment", "RLVR"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/surprising-success-repeated-failure-entropy-guided-credit-assignment-for-in-llm", "markdown": "https://wpnews.pro/news/surprising-success-repeated-failure-entropy-guided-credit-assignment-for-in-llm.md", "text": "https://wpnews.pro/news/surprising-success-repeated-failure-entropy-guided-credit-assignment-for-in-llm.txt", "jsonld": "https://wpnews.pro/news/surprising-success-repeated-failure-entropy-guided-credit-assignment-for-in-llm.jsonld"}}