Pith. sign in

REVIEW 6 cited by

Revisiting Multi-Agent Debate as Test-Time Scaling: A Systematic Study of Conditional Effectiveness

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2505.22960 v2 pith:Z6EKFBPS submitted 2025-05-29 cs.AI cs.LG

classification cs.AIcs.LG
keywords scalingagentcollaborativedebatediversemodelmulti-agentreasoning
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
read the original abstract

The remarkable growth in large language model (LLM) capabilities has spurred exploration into multi-agent systems, with debate frameworks emerging as a promising avenue for enhanced problem-solving. These multi-agent debate (MAD) approaches, where agents collaboratively present, critique, and refine arguments, potentially offer improved reasoning, robustness, and diverse perspectives over monolithic models. Despite prior studies leveraging MAD, a systematic understanding of its effectiveness compared to self-agent methods, particularly under varying conditions, remains elusive. This paper seeks to fill this gap by conceptualizing MAD as a test-time computational scaling technique, distinguished by collaborative refinement and diverse exploration capabilities. We conduct a comprehensive empirical investigation comparing MAD with strong self-agent test-time scaling baselines on mathematical reasoning and safety-related tasks. Our study systematically examines the influence of task difficulty, model scale, and agent diversity on MAD's performance. Key findings reveal that, for mathematical reasoning, MAD offers limited advantages over self-agent scaling but becomes more effective with increased problem difficulty and decreased model capability, while agent diversity shows little benefit. Conversely, for safety tasks, MAD's collaborative refinement can increase vulnerability, but incorporating diverse agent configurations facilitates a gradual reduction in attack success through the collaborative refinement process. We believe our findings provide critical guidance for the future development of more effective and strategically deployed MAD systems.

Discussion (0). Sign in to comment.

Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Heterogeneous LLM Debate Under Adversarial Peers: Honest Gains, Replacement Costs, and Resilience

    cs.CR 2026-06 unverdicted novelty 7.0 of 10

    Honest heterogeneous peers in LLM debates lower harmful revision rates (e.g., 89% to 35%), while adversarial peers raise them (to 90%), and provide defense even against same-family adversaries.

  2. The Ringelmann Effect in Multi-Agent LLM Systems: A Scaling Law for Effective Team Size

    physics.soc-ph 2026-05 conditional novelty 7.0 of 10

    A derived scaling law R(N) = 1/(1 + c(N-1)N^{-β}) fits answer diversity and correctness across 44 LLM multi-agent conditions with R² > 0.99, classifying regimes by β and showing only heterogeneous teams escape hard-ce...

  3. When Helping Hurts and How to Fix It: Multi-Agent Debate for Data Cleaning

    cs.AI 2026-06 unverdicted novelty 6.0 of 10

    Multi-agent debate degrades generation but boosts error detection in data cleaning; a derived benefit condition predicts outcomes across tasks and generalizes to other domains.

  4. Not All Flips Are Conformity: Decomposing Stance Convergence in Multi-Agent LLM Debate

    cs.CL 2026-05 unverdicted novelty 6.0 of 10

    The paper introduces a three-source decomposition showing that answer flips in multi-agent LLM debate include 37% spontaneous instability and 29% harmful conformity, with even vacuous reasoning persuading 20-39% of re...

  5. The Reasoning Trap: An Information-Theoretic Bound on Closed-System Multi-Step LLM Reasoning

    cs.CL 2026-05 unverdicted novelty 6.0 of 10

    Closed-system multi-step LLM reasoning is subject to an information-theoretic bound where mutual information with evidence decreases, preserving accuracy while eroding faithfulness, with EGSR recovering it on SciFact ...

  6. Free-MAD: Consensus-Free Multi-Agent Debate

    cs.AI 2025-09 conditional novelty 6.0 of 10

    Free-MAD picks the winning answer by scoring the full trajectory of agents' answers across debate rounds, beating majority voting with fewer rounds.

Pith tools