SRPO:自反策略优化用于长期推理

SRPO: Self-Reflective Policy Optimization for Long-Horizon Reasoning

精选理由

SRPO框架使LLMs能够自我分析,提高长期推理能力,比传统方法更高效。

AI 摘要

SRPO是一种框架,使LLMs能够分析自身轨迹,将错误合成简洁的'反思补丁',并使用条件教师分数作为密集的token级训练信号。在数学推理和长期代理基准测试中,SRPO实现了最先进的性能,使用Qwen3-8B基模型,在AIME'24上达到73.3%,仅使用8%的训练FLOPs,同时显著提高WebShop(64.7%)、ALFWorld(76.8%)和SWE-Bench-Lite(31.2%)的成功率。

原文 · arXiv cs.AI

SRPO: Self-Reflective Policy Optimization for Long-Horizon Reasoning

Self-reflection is a powerful mechanism for credit assignment in human learning, converting sparse outcome feedback into actionable guidance. However, its potential for post-training Large Language Models (LLMs) remains underexplored. We propose Self-Reflective Policy Optimization (SRPO), a framework that internalizes this capability. SRPO enables LLMs to analyze their own completed trajectories, synthesize errors into concise "reflection patches," and use reflection-conditioned teacher scores on student on-policy rollouts as dense token-level training signals. This process effectively transforms sparse terminal supervision into dense, token-level learning signals without requiring external critics, separate reward models, or larger teacher models. We demonstrate that SRPO achieves state-of-the-art performance across mathematical reasoning and long-horizon agentic benchmarks with exceptional data efficiency. Using a Qwen3-8B base model, SRPO attains 73.3% on AIME'24 using only 8% (0.08x) of the training FLOPs required by scaled supervised fine-tuning, while significantly improving success rates on WebShop (64.7%), ALFWorld (76.8%), and SWE-Bench-Lite (31.2%). Code is available at https://github.com/Galleons2029/SRPO