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ReWOO: Decoupling Reasoning from Observations for Efficient Augmented Language Models

Canonical reference. 88% of citing Pith papers cite this work as background.

24 Pith papers citing it
Background 88% of classified citations
abstract

Augmented Language Models (ALMs) blend the reasoning capabilities of Large Language Models (LLMs) with tools that allow for knowledge retrieval and action execution. Existing ALM systems trigger LLM thought processes while pulling observations from these tools in an interleaved fashion. Specifically, an LLM reasons to call an external tool, gets halted to fetch the tool's response, and then decides the next action based on all preceding response tokens. Such a paradigm, though straightforward and easy to implement, often leads to huge computation complexity from redundant prompts and repeated execution. This study addresses such challenges for the first time, proposing a modular paradigm ReWOO (Reasoning WithOut Observation) that detaches the reasoning process from external observations, thus significantly reducing token consumption. Comprehensive evaluations across six public NLP benchmarks and a curated dataset reveal consistent performance enhancements with our proposed methodology. Notably, ReWOO achieves 5x token efficiency and 4% accuracy improvement on HotpotQA, a multi-step reasoning benchmark. Furthermore, ReWOO demonstrates robustness under tool-failure scenarios. Beyond prompt efficiency, decoupling parametric modules from non-parametric tool calls enables instruction fine-tuning to offload LLMs into smaller language models, thus substantially reducing model parameters. Our illustrative work offloads reasoning ability from 175B GPT3.5 into 7B LLaMA, demonstrating the significant potential for truly efficient and scalable ALM systems.

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representative citing papers

Boiling the Frog: A Multi-Turn Benchmark for Agentic Safety

cs.CL · 2026-05-21 · unverdicted · novelty 7.0 · 2 refs

Boiling the Frog is a new stateful multi-turn benchmark that finds an aggregate 44.4% strict attack success rate for incremental safety violations across nine AI models, with rates ranging from 20.5% to 92.9%.

Evaluating Plan Compliance in Autonomous Programming Agents

cs.SE · 2026-04-13 · unverdicted · novelty 7.0

Autonomous programming agents frequently fail to follow instructed plans, falling back on incomplete internalized workflows, while standard plans and periodic reminders improve performance but poor plans can degrade it more than no plan.

REPOT: Recoverable Program-of-Thought via Checkpoint Repair

cs.SE · 2026-05-28 · unverdicted · novelty 6.0

RePoT recovers from PoT failures via deterministic verified replay and checkpoint repair, yielding +3 to +11pp gains on planning benchmarks and showing checkpoint state as the key recovery signal over error-only feedback.

Affordance Agent Harness: Verification-Gated Skill Orchestration

cs.RO · 2026-05-01 · unverdicted · novelty 6.0 · 2 refs

Affordance Agent Harness is a verification-gated orchestration system that unifies skills via an evidence store, episodic memory priors, an adaptive router, and a self-consistency verifier to improve accuracy-cost tradeoffs in open-world affordance grounding.

OS-ATLAS: A Foundation Action Model for Generalist GUI Agents

cs.CL · 2024-10-30 · unverdicted · novelty 6.0

OS-Atlas, trained on the largest open-source cross-platform GUI grounding corpus of 13 million elements, outperforms prior open-source models on six benchmarks across mobile, desktop, and web platforms.

A Survey on Large Language Model based Autonomous Agents

cs.AI · 2023-08-22 · accept · novelty 6.0

A survey of LLM-based autonomous agents that proposes a unified framework for their construction and reviews applications in social science, natural science, and engineering along with evaluation methods and future directions.

Agentic Reasoning for Large Language Models

cs.AI · 2026-01-18 · unverdicted · novelty 4.0

The survey structures agentic reasoning for LLMs into foundational, self-evolving, and collective multi-agent layers while distinguishing in-context orchestration from post-training optimization and reviewing applications across domains.

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