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arxiv: 2509.26306 · v4 · submitted 2025-09-30 · 💻 cs.AI

Interactive Learning for LLM Reasoning

Pith reviewed 2026-05-18 12:25 UTC · model grok-4.3

classification 💻 cs.AI
keywords interactive learningLLM reasoningmulti-agent systemsco-learningdynamic interactionperception calibrationIdea3GRPO
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The pith

Multi-agent interactions during training let LLMs reason better on their own at inference time.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper tests whether LLMs can improve their standalone reasoning by learning from multi-agent interactions, much like humans gain from discussions but then solve problems alone. It presents ILR, which uses dynamic choices between cooperative and competitive interactions via an Idea3 exchange method, plus perception calibration to align agent rewards. Tested on math, coding, QA, and science tasks with three different LLMs, the approach yields gains of up to 5 percent over single-agent methods. This matters because it could allow stronger reasoning models without the overhead of running multiple agents for every new question. The results also indicate that adaptive interaction types work better than fixed strategies.

Core claim

The central claim is that a co-learning framework called ILR, incorporating Dynamic Interaction that adaptively selects cooperative or competitive strategies and employs Idea3 for human-like information exchange, along with Perception Calibration using Group Relative Policy Optimization to blend reward distributions, allows LLMs to enhance their independent problem-solving abilities after training. This is shown through consistent outperformance of up to 5% on eight benchmarks spanning mathematics, coding, general question answering, and scientific reasoning across three LLMs, with dynamic strategies and Idea3 providing additional benefits in robustness and learning effectiveness.

What carries the argument

Idea3 interaction paradigm that mimics human discussion for exchanging ideas among LLMs before they derive individual answers, supported by dynamic strategy selection and GRPO-based perception calibration.

If this is right

  • ILR training leads to better independent performance on mathematical and coding benchmarks compared to single-agent learning.
  • Stronger LLMs show increased robustness when using Idea3 during multi-agent inference.
  • Adaptive dynamic interaction outperforms fixed cooperative or competitive approaches in multi-agent learning.
  • The framework supports improved reasoning across models of varying scales from different families.
  • Up to 5% improvement is achievable over the strongest baselines on the evaluated tasks.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • This training method could lower inference costs by allowing single-model deployment after collaborative training.
  • Similar interaction-based learning might improve performance in other AI tasks involving multiple models, such as debate or verification systems.
  • Testing the framework with larger numbers of agents or in real-time applications would reveal scalability limits.

Load-bearing premise

The benefits from multi-agent interactions in training will carry over to better performance when the model solves problems alone at inference time.

What would settle it

A replication study finding no performance gain or a loss in accuracy on the benchmarks when LLMs are tested independently after ILR training versus standard single-agent training would disprove the transfer of learning benefits.

Figures

Figures reproduced from arXiv: 2509.26306 by Chengwei Qin, Haotian Wu, Hehai Lin, Juepeng Zheng, Linyi Yang, Minzhi Li, Shilei Cao, Sudong Wang.

Figure 1
Figure 1. Figure 1: Conceptual comparison of ILR, existing Multi-agent Learning, and Single-agent Learning. [PITH_FULL_IMAGE:figures/full_fig_p002_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: Illustration of proposed ILR for multi-agent learning. [PITH_FULL_IMAGE:figures/full_fig_p004_2.png] view at source ↗
Figure 3
Figure 3. Figure 3: Average accuracy of Group1 under varying cooperation ratios. IRT is marked in red. In ILR training, we employ Item Response The￾ory (IRT) to dynamically determine interaction types, i.e., cooperation or competition. To further investigate the influence of cooperation, we vary the cooperation ratio (p) from 0.0 to 1.0 in incre￾ments of 0.2. Here, p = 0.0 corresponds to full competition, p = 1.0 to full coop… view at source ↗
Figure 4
Figure 4. Figure 4: Question Difficulty Distribution (the interval is 0.01) of MATH training set used in ILR. [PITH_FULL_IMAGE:figures/full_fig_p016_4.png] view at source ↗
read the original abstract

Existing multi-agent learning approaches have developed interactive training environments to explicitly promote collaboration among multiple Large Language Models (LLMs), thereby constructing stronger multi-agent systems (MAS). However, during inference, they require re-executing the MAS to obtain final solutions, which diverges from human cognition that individuals can enhance their reasoning capabilities through interactions with others and resolve questions independently in the future. To investigate whether multi-agent interaction can enhance LLMs' independent problem-solving ability, we introduce ILR, a novel co-learning framework for MAS that integrates two key components: Dynamic Interaction and Perception Calibration. Specifically, Dynamic Interaction first adaptively selects either cooperative or competitive strategies depending on question difficulty and model ability. LLMs then exchange information through Idea3, an innovative interaction paradigm designed to mimic human discussion, before deriving their respective final answers. In Perception Calibration, ILR employs Group Relative Policy Optimization (GRPO) to train LLMs while integrating one LLM's reward distribution characteristics into another's reward function, thereby enhancing the cohesion of multi-agent interactions. We evaluate the effectiveness of ILR across three LLMs from two model families of varying scales on five mathematical, one coding, one general question answering, and one scientific reasoning benchmarks. Experimental results show that ILR consistently outperforms single-agent learning, yielding an improvement of up to 5% over the strongest baseline. We further discover that Idea3 can enhance the robustness of stronger LLMs during multi-agent inference, and dynamic interaction types can boost multi-agent learning compared to pure cooperative or competitive strategies.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

3 major / 2 minor

Summary. The paper introduces ILR, a co-learning framework for multi-agent LLM systems consisting of Dynamic Interaction (adaptive selection of cooperative or competitive strategies based on question difficulty and model ability, followed by information exchange via the Idea3 paradigm) and Perception Calibration (GRPO training that integrates one agent's reward distribution into another's). The central empirical claim is that this training enables LLMs to improve their independent problem-solving at inference time, yielding up to 5% gains over the strongest single-agent baselines across three LLMs on five mathematical, one coding, one QA, and one scientific reasoning benchmark.

Significance. If the reported gains are shown to arise from truly independent inference without re-invoking MAS components, the result would be significant for LLM reasoning research: it would demonstrate a training paradigm that leverages multi-agent interactions to produce stronger solo reasoners, aligning with the human-cognition motivation and avoiding the inference-time cost of full MAS execution. The breadth of benchmarks and model scales supports potential generalizability, though the absence of statistical controls limits immediate impact assessment.

major comments (3)
  1. [Abstract and Experimental Results] Abstract and primary results tables: the central claim of improved independent problem-solving (up to 5% over single-agent baselines) requires explicit confirmation that the reported numbers reflect solo inference with no Idea3 exchanges or dynamic strategy selection active at test time. The motivation section contrasts ILR with prior MAS methods that re-execute the full system at inference, yet the evaluation protocol for the headline tables is not stated, leaving the transfer assumption unverified.
  2. [Experimental Setup and Results] Evaluation methodology: no error bars, number of random seeds, statistical significance tests, or controls for prompt sensitivity are reported for the consistent outperformance claim. This is load-bearing because the 5% figure is the primary evidence that multi-agent training transfers to better solo performance; without these details the result cannot be distinguished from implementation variance or baseline differences (e.g., whether single-agent runs also used GRPO).
  3. [Dynamic Interaction] Dynamic Interaction section: the adaptive threshold for choosing cooperative versus competitive strategies is listed as a free parameter with no description of how it is set, cross-validated, or shown to be robust across the eight benchmarks. If this threshold is tuned on the same data used for final reporting, the claimed generalization to independent reasoning may be overstated.
minor comments (2)
  1. Add a dedicated paragraph or table row clarifying the exact inference configuration (solo vs. full MAS) used for each reported number.
  2. Specify the precise model sizes, families, and training hyperparameters for the three LLMs to aid reproducibility.

Simulated Author's Rebuttal

3 responses · 0 unresolved

We thank the referee for the constructive comments. We address each major point below with clarifications and indicate revisions to improve the manuscript.

read point-by-point responses
  1. Referee: [Abstract and Experimental Results] Abstract and primary results tables: the central claim of improved independent problem-solving (up to 5% over single-agent baselines) requires explicit confirmation that the reported numbers reflect solo inference with no Idea3 exchanges or dynamic strategy selection active at test time. The motivation section contrasts ILR with prior MAS methods that re-execute the full system at inference, yet the evaluation protocol for the headline tables is not stated, leaving the transfer assumption unverified.

    Authors: We thank the referee for this important observation. The headline results reflect solo inference on the trained models with no Idea3 exchanges or dynamic strategy selection active at test time, consistent with the paper's focus on enhancing independent problem-solving. We will revise the abstract and add an explicit statement in the Experimental Setup and Results sections confirming the inference protocol used for all reported numbers. revision: yes

  2. Referee: [Experimental Setup and Results] Evaluation methodology: no error bars, number of random seeds, statistical significance tests, or controls for prompt sensitivity are reported for the consistent outperformance claim. This is load-bearing because the 5% figure is the primary evidence that multi-agent training transfers to better solo performance; without these details the result cannot be distinguished from implementation variance or baseline differences (e.g., whether single-agent runs also used GRPO).

    Authors: We agree that greater statistical detail is needed to support the claims. Single-agent baselines were trained under comparable conditions including GRPO where relevant. In the revision we will add error bars from multiple random seeds, statistical significance tests, and discussion of prompt sensitivity controls to better substantiate the transfer results. revision: yes

  3. Referee: [Dynamic Interaction] Dynamic Interaction section: the adaptive threshold for choosing cooperative versus competitive strategies is listed as a free parameter with no description of how it is set, cross-validated, or shown to be robust across the eight benchmarks. If this threshold is tuned on the same data used for final reporting, the claimed generalization to independent reasoning may be overstated.

    Authors: We will revise the Dynamic Interaction section to fully describe the adaptive threshold, including the procedure for setting it, any use of validation data, and robustness checks across benchmarks. This will clarify that the threshold supports generalization rather than being tuned directly on test data. revision: yes

Circularity Check

0 steps flagged

No significant circularity in empirical method and results

full rationale

The paper proposes the ILR framework with explicitly defined components (Dynamic Interaction via Idea3, Perception Calibration with GRPO reward integration) and supports its claims through experimental evaluation on eight benchmarks across three LLMs. No mathematical derivations, first-principles predictions, or uniqueness theorems are presented that reduce to fitted parameters or self-citations by construction. The reported improvements (up to 5%) are measured outcomes from held-out benchmarks, not tautological re-statements of training inputs. Self-citations, if present, are not load-bearing for the central empirical claim. This is a standard non-finding for an experimental methods paper whose results are externally falsifiable.

Axiom & Free-Parameter Ledger

1 free parameters · 1 axioms · 1 invented entities

Based on abstract only; several training choices such as exact adaptive selection logic and reward integration mechanics are introduced without external grounding.

free parameters (1)
  • adaptive selection threshold for cooperative vs competitive strategies
    Determined by question difficulty and model ability but no explicit fitting procedure or values given.
axioms (1)
  • domain assumption Multi-agent interactions during training transfer to improved single-model inference performance
    Core premise contrasting with existing MAS that require ongoing execution at inference.
invented entities (1)
  • Idea3 interaction paradigm no independent evidence
    purpose: Mimic human discussion for information exchange among LLMs
    Newly proposed interaction format whose details are not expanded in abstract.

pith-pipeline@v0.9.0 · 5817 in / 1324 out tokens · 50611 ms · 2026-05-18T12:25:58.924342+00:00 · methodology

discussion (0)

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Forward citations

Cited by 3 Pith papers

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

  1. AIPO: Learning to Reason from Active Interaction

    cs.CL 2026-05 unverdicted novelty 6.0

    AIPO trains LLMs to expand their reasoning capability boundary via active multi-agent interaction with Verify, Knowledge, and Reasoning agents during RLVR, using importance sampling and clipping to handle feedback, th...

  2. AIPO: Learning to Reason from Active Interaction

    cs.CL 2026-05 unverdicted novelty 6.0

    AIPO adds active multi-agent consultation (Verify, Knowledge, Reasoning agents) plus custom importance sampling to RLVR training so LLMs expand their reasoning boundary and then operate without the agents.

  3. Experience Sharing in Mutual Reinforcement Learning for Heterogeneous Language Models

    cs.LG 2026-05 unverdicted novelty 6.0

    Mutual Reinforcement Learning allows heterogeneous LLMs to exchange experience through mechanisms like Peer Rollout Pooling, Cross-Policy GRPO Advantage Sharing, and Success-Gated Transfer, with outcome-level sharing ...

Reference graph

Works this paper leans on

16 extracted references · 16 canonical work pages · cited by 2 Pith papers

  1. [1]

    Substitutex=− 3 5 into the functional equation: f − 3 5 +f − 3 5 + 1 1−3· − 3 5 ! =− 3 5 ⇒f − 3 5 +f 1 7 =− 3 5

  2. [2]

    Substitutex= 1 7 into the functional equation: f 1 7 +f 1 7 + 1 1−3· 1 7 = 1 7 ⇒f 1 7 +f(2) = 1 7

  3. [3]

    Solve the system of equations: We have the following system of equations: n f(2) +f − 3 5 = 2(1)f − 3 5 +f 1 7 =− 3 5 (2)f 1 7 +f(2) = 1 7 (3)

  4. [4]

    Add equations (1) and (3): (f(2) +f − 3 5 ) + (f 1 7 +f(2)) = 2 + 1 7 2f(2) +f − 3 5 +f 1 7 = 15 7

  5. [5]

    Substitute equation (2) into the result: 2f(2) + − 3 5 = 15 7 2f(2)− 3 5 = 15 7

  6. [6]

    LLM1 (Idea Sharing): To find the minimum value of the given expression, we can use the following steps: Step 1: Rewrite the expression

    Solve forf(2): 2f(2) = 15 7 + 3 5 Find a common denominator: 2f(2) = 75 35 + 21 35 = 96 35 f(2) = 48 35 Thus, the value off(2)is 48 35 .✓ Competition mode (LLMs raise better solutions after interaction) Problem: Find the minimum value of x2+7√ x2+3 over all real numbersx. LLM1 (Idea Sharing): To find the minimum value of the given expression, we can use t...

  7. [7]

    Define the function and its domain: f(x) = x2 + 7√ x2 + 3 The domain off(x)is all real numbersxbecause the expression under the square root,x 2 + 3, is always positive for all realx

  8. [8]

    f(x) = x2 + 7√ x2 + 3 Letu=x 2 + 7andv= √ x2 + 3

    Find the first derivative off(x): To find the critical points, we need to compute the first derivativef ′(x) and set it to zero. f(x) = x2 + 7√ x2 + 3 Letu=x 2 + 7andv= √ x2 + 3. Thenf(x) = u v . Using the quotient rule: f ′(x) = u′v−uv ′ v2 whereu ′ = 2xandv ′ = x√ x2+3 . Substitutingu,u ′,v, andv ′ into the quotient rule: f ′(x) = (2x)( √ x2 + 3)−(x 2 +...

  9. [9]

    Evaluatef(x)at the critical points and endpoints: f(0) = 02 + 7√ 02 + 3 = 7√ 3 = 7 √ 3 3 f(1) = 12 + 7√ 12 + 3 = 8√ 4 = 8 2 = 4 f(−1) = (−1)2 + 7p (−1)2 + 3 = 8√ 4 = 8 2 = 4

  10. [10]

    Under review

    Determine the minimum value: Comparing the values: f(0) = 7 √ 3 3 ≈4.041 f(1) = 4 f(−1) = 4 20 Preprint. Under review. The minimum value is4. Therefore, the minimum value of the function is4 .✓ LLM1 (Idea Analysis): The opponent’s solution is a thorough and detailed approach to finding the minimum value of the given function. Here’s a critical analysis of...

  11. [11]

    Rewrite the Expression: f(x) = x2 + 7√ x2 + 3 = x2 + 3 + 4√ x2 + 3 = x2 + 3√ x2 + 3 + 4√ x2 + 3 = p x2 + 3 + 4√ x2 + 3

  12. [12]

    Simplify the Expression: We have simplified the expression to: f(x) = p x2 + 3 + 4√ x2 + 3

  13. [13]

    Use the AM-GM Inequality: The Arithmetic Mean-Geometric Mean (AM-GM) inequality states that for any non-negative real numbersaandb, a+b 2 ≥ √ ab Applying this to our expression: p x2 + 3 + 4√ x2 + 3 ≥2 sp x2 + 3· 4√ x2 + 3 = 2 √ 4 = 4 Therefore, p x2 + 3 + 4√ x2 + 3 ≥4

  14. [14]

    Then: y2 = 16 y2 y4 = 16 y2 = 4(sincey≥0) y= 2 Therefore: p x2 + 3 = 2 x2 + 3 = 4 x2 = 1 x=±1

    Find the Equality Condition: The equality in the AM-GM inequality holds when: p x2 + 3 = 4√ x2 + 3 Solving forx: ( p x2 + 3)2 = 4√ x2 + 3 2 x2 + 3 = 16 x2 + 3 Lety= √ x2 + 3. Then: y2 = 16 y2 y4 = 16 y2 = 4(sincey≥0) y= 2 Therefore: p x2 + 3 = 2 x2 + 3 = 4 x2 = 1 x=±1

  15. [15]

    Verify the Minimum Value: Substitutex=±1into the original function to verify: f(1) = 12 + 7√ 12 + 3 = 8 2 = 4 f(−1) = (−1)2 + 7p (−1)2 + 3 = 8 2 = 4

  16. [16]

    The final answer is:4 ✓ 22 Preprint

    Conclusion: Since the AM-GM inequality holds with equality atx=±1and the function value at these points is 4, the minimum value of the function is indeed 4. The final answer is:4 ✓ 22 Preprint. Under review. A.5 LIMITATIONS There is one primary limitation in our work. Although ILR can be applied to interactive learning among multiple LLMs (more than two),...