{"slug": "why-pay-for-long-reasoning-when-rewrite-do-trick-causal-effects-of-reasoning-on", "title": "Why Pay for Long Reasoning When Rewrite Do Trick? Causal Effects of Reasoning History Compaction on Future Generation and Agent Cost", "summary": "A research paper titled \"Why Pay for Long Reasoning When Rewrite Do Trick? Causal Effects of Reasoning History Compaction on Future Generation and Agent Cost\" examines how compacting reasoning histories reduces the cost of long reasoning traces in language models. The work frames efficient reasoning as expressing useful analysis in fewer tokens by cutting repetition and low-value text, and measures the causal effects of that compaction on future generation and agent cost. The source provides no specific figures, named authors, or institution behind the study.", "body_md": "Reasoning substantially improves language models' ability to solve difficult problems, but long reasoning traces make these gains expensive. Efficient reasoning should express useful analysis in fewer tokens by reducing repetition and text that adds little value to solving the problem. Progress in p", "url": "https://wpnews.pro/news/why-pay-for-long-reasoning-when-rewrite-do-trick-causal-effects-of-reasoning-on", "canonical_source": "https://aiflash.com/news/146136/", "published_at": "2026-11-05 13:30:30+00:00", "updated_at": "2026-11-05 13:49:40.304315+00:00", "lang": "en", "topics": ["artificial-intelligence", "large-language-models", "ai-agents", "ai-research"], "entities": [], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/why-pay-for-long-reasoning-when-rewrite-do-trick-causal-effects-of-reasoning-on", "markdown": "https://wpnews.pro/news/why-pay-for-long-reasoning-when-rewrite-do-trick-causal-effects-of-reasoning-on.md", "text": "https://wpnews.pro/news/why-pay-for-long-reasoning-when-rewrite-do-trick-causal-effects-of-reasoning-on.txt", "jsonld": "https://wpnews.pro/news/why-pay-for-long-reasoning-when-rewrite-do-trick-causal-effects-of-reasoning-on.jsonld"}}