{"type": "article", "title": "Rewarding Efficient Reasoning Improves Abstention on Underspecified Tasks in Reasoning Models", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/rewarding-efficient-reasoning-improves-abstention-on-underspecified-tasks-in", "original_source": "https://arxiv.org/abs/2609.20846", "published": "2026-09-21T04:00:00+00:00", "accessed": "2026-09-21", "id": "rewarding-efficient-reasoning-improves-abstention-on-underspecified-tasks-in"}