开源框架Orchard让大模型变身高效自主智能体,支持多领域任务。
Orchard: An Open-Source Agentic Modeling Framework

- 基于轻量Kubernetes环境层,统一管理智能体训练与运行
- 在SWE-bench上达73.0%准确率,接近十倍更大的闭源系统
- 仅用少量数据即可训练出强性能的编程、视觉、助理类智能体
自主建模旨在将大语言模型转化为能通过规划、推理、工具使用和与外部环境多轮交互解决复杂任务的自主智能体。我们提出Orchard,一个可扩展的开源自主建模框架。核心是Orchard Env——一个轻量级的Kubernetes原生环境服务,提供跨任务领域、智能体集成和训练阶段的可复用沙箱生命周期管理。在此基础上,我们构建了三个建模方案:Orchard-SWE针对软件工程智能体,引入信用分配监督微调及渐进式强化信号:平衡自适应回溯(BAR)用于稀疏奖励优化,同策略蒸馏(OPD)和基于评分标准的过程奖励(RPR)用于密集监督,以及历史经验蒸馏,将先前实验的轨迹压缩为紧凑值模型以实现推理时重排序。基于Qwen3.5-35B-A3B主干,Orchard-SWE在SWE-bench Verified上达到69.7%(使用RPR强化学习)和73.0%(使用值模型重排序),成为开源方法中的新纪录,逼近远超其规模的前沿系统。Orchard-GUI仅用0.4K蒸馏轨迹和2.2K开放任务训练4B视觉语言计算机使用智能体,在WebVoyager、Online-Mind2Web和DeepShop上平均成功率达68.4%,是当前最强开源模型且媲美专有系统。Orchard-Claw针对个人助理智能体,仅用0.2K合成任务训练,达成Claw-Eval上59.6% pass@3,配合适配更强的ZeroClaw集成后达73.9%。这些成果表明,轻量、开源、集成无关的环境层可实现跨领域的可复用智能体数据、训练配方与评估协议。
原文摘要 · Abstract (English)
Agentic modeling aims to transform LLMs into autonomous agents capable of solving complex tasks through planning, reasoning, tool use, and multi-turn interaction with external environments. We present Orchard, an open-source framework for scalable agentic modeling. At its core is Orchard Env, a lightweight Kubernetes-native environment service that provides reusable primitives for sandbox lifecycle management across task domains, agent harnesses, and training stages. On top of Orchard Env, we build three agentic modeling recipes. Orchard-SWE targets software engineering agents. We introduce credit-assignment supervised fine-tuning and a progression of RL signals: Balanced Adaptive Rollout (BAR) for sparse-reward optimization, on-policy distillation (OPD) and rubric-based process reward (RPR) for dense supervision, and historical experience distillation, which compresses rollouts from prior experiments into a compact value model for inference-time reranking. Built on the Qwen3.5-35B-A3B backbone, Orchard-SWE reaches 69.7% with RPR-based RL and 73.0% with value-model reranking on SWE-bench Verified, setting a new state of the art among open-source methods while approaching frontier systems over 10x larger. Orchard-GUI trains a 4B vision-language computer-use agent using only 0.4K distilled trajectories and 2.2K open-ended tasks, achieving 68.4% average success across WebVoyager, Online-Mind2Web, and DeepShop, making it the strongest open-source model while remaining competitive with proprietary systems. Orchard-Claw targets personal assistant agents. Trained with only 0.2K synthetic tasks, it achieves 59.6% pass@3 on Claw-Eval and 73.9% when paired with the stronger ZeroClaw harness. Collectively, these results demonstrate that a lightweight, open, harness-agnostic environment layer enables reusable agentic data, training recipes, and evaluation protocols across domains.
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