{"paper":{"title":"AlphaOne: Reasoning Models Thinking Slow and Fast at Test Time","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Han Wang, Haoran Geng, Huan Zhang, Jitendra Malik, Junyu Zhang, Peihao Li, Runpei Dong, Saurabh Gupta, Xialin He, Xuying Ning, Yutong Bai","submitted_at":"2025-05-30T17:58:36Z","abstract_excerpt":"This paper presents AlphaOne ($\\alpha$1), a universal framework for modulating reasoning progress in large reasoning models (LRMs) at test time. $\\alpha$1 first introduces $\\alpha$ moment, which represents the scaled thinking phase with a universal parameter $\\alpha$. Within this scaled pre-$\\alpha$ moment phase, it dynamically schedules slow thinking transitions by modeling the insertion of reasoning transition tokens as a Bernoulli stochastic process. After the $\\alpha$ moment, $\\alpha$1 deterministically terminates slow thinking with the end-of-thinking token, thereby fostering fast reasoni"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.24863","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2505.24863/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}