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Main Authors: Zhang, Chi, Qiu, Haibo, Zhang, Qiming, Xu, Yufei, Gao, Xinbo, Zhang, Jing
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2605.11636
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author Zhang, Chi
Qiu, Haibo
Zhang, Qiming
Xu, Yufei
Gao, Xinbo
Zhang, Jing
author_facet Zhang, Chi
Qiu, Haibo
Zhang, Qiming
Xu, Yufei
Gao, Xinbo
Zhang, Jing
contents We present Seirênes, a self-play RL framework that transforms contextual interference from a failure mode of LLM reasoning into an internal training signal for co-evolving more resilient reasoners. While RL with verifiable rewards has significantly advanced reasoning capabilities, models can still exhibit fragility when encountering non-idealized contexts: scenarios characterized by superfluous information, tangential instructions, or incidental correlations that differ from the clean distributions typical of standard benchmarks. Seirênes harnesses this vulnerability through a parameter-shared and adversarial self-play loop. Within this framework, a single model is trained to both construct plausible yet distracting contexts that expose its own reasoning blind spots, and solve problems by discerning the essential task from these perturbations to recover the core underlying logic. By pitting these competing objectives against each other, Seirênes compels the model to move beyond superficial pattern matching and anchors its capabilities in robust underlying reasoning. This continuous interaction sustains an informative co-evolutionary curriculum as the model improves. Across seven mathematical reasoning benchmarks and model scales from 4B to 30B, Seirênes achieves average gains of +10.2, +9.1, and +7.2 points. Besides, distracting contexts produced by the 4B Seirênes model reduce the accuracy of top-tier closed-source models (GPT and Gemini) by roughly 4--5 points, revealing Seirênes' general ability to uncover reasoning models' blind spots.
format Preprint
id arxiv_https___arxiv_org_abs_2605_11636
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Seirênes: Adversarial Self-Play with Evolving Distractions for LLM Reasoning
Zhang, Chi
Qiu, Haibo
Zhang, Qiming
Xu, Yufei
Gao, Xinbo
Zhang, Jing
Artificial Intelligence
We present Seirênes, a self-play RL framework that transforms contextual interference from a failure mode of LLM reasoning into an internal training signal for co-evolving more resilient reasoners. While RL with verifiable rewards has significantly advanced reasoning capabilities, models can still exhibit fragility when encountering non-idealized contexts: scenarios characterized by superfluous information, tangential instructions, or incidental correlations that differ from the clean distributions typical of standard benchmarks. Seirênes harnesses this vulnerability through a parameter-shared and adversarial self-play loop. Within this framework, a single model is trained to both construct plausible yet distracting contexts that expose its own reasoning blind spots, and solve problems by discerning the essential task from these perturbations to recover the core underlying logic. By pitting these competing objectives against each other, Seirênes compels the model to move beyond superficial pattern matching and anchors its capabilities in robust underlying reasoning. This continuous interaction sustains an informative co-evolutionary curriculum as the model improves. Across seven mathematical reasoning benchmarks and model scales from 4B to 30B, Seirênes achieves average gains of +10.2, +9.1, and +7.2 points. Besides, distracting contexts produced by the 4B Seirênes model reduce the accuracy of top-tier closed-source models (GPT and Gemini) by roughly 4--5 points, revealing Seirênes' general ability to uncover reasoning models' blind spots.
title Seirênes: Adversarial Self-Play with Evolving Distractions for LLM Reasoning
topic Artificial Intelligence
url https://arxiv.org/abs/2605.11636