{"slug": "rethinking-training-inference-mismatch-in-llm-reinforcement-learning-where-it-to", "title": "Rethinking Training-Inference Mismatch in LLM Reinforcement Learning: Where It Arises and How to Correct It", "summary": "A study of training-inference mismatch in reinforcement learning with verifiable rewards (RLVR) for large language models finds that rollouts sampled by an inference engine and gradients computed by a training engine assign different probabilities to the same tokens. The research examines where the mismatch arises and how to correct it.", "body_md": "We study training-inference mismatch in reinforcement learning with verifiable rewards (RLVR) for large language models, where rollouts are sampled by an inference engine while gradients are computed by a training engine, and the two engines assign different probabilities to the same tokens. To acco", "url": "https://wpnews.pro/news/rethinking-training-inference-mismatch-in-llm-reinforcement-learning-where-it-to", "canonical_source": "https://aiflash.com/news/128206/", "published_at": "2026-09-29 02:00:10+00:00", "updated_at": "2026-09-29 02:19:22.634498+00:00", "lang": "en", "topics": ["large-language-models", "machine-learning", "ai-research", "artificial-intelligence"], "entities": [], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/rethinking-training-inference-mismatch-in-llm-reinforcement-learning-where-it-to", "markdown": "https://wpnews.pro/news/rethinking-training-inference-mismatch-in-llm-reinforcement-learning-where-it-to.md", "text": "https://wpnews.pro/news/rethinking-training-inference-mismatch-in-llm-reinforcement-learning-where-it-to.txt", "jsonld": "https://wpnews.pro/news/rethinking-training-inference-mismatch-in-llm-reinforcement-learning-where-it-to.jsonld"}}