Paper
Quantifying Conversational Reliability of Large Language Models under Multi-Turn Interaction
Authors
Jiyoon Myung
Abstract
Large Language Models (LLMs) are increasingly deployed in real-world applications where users engage in extended, mixed-topic conversations that depend on prior context. Yet, their reliability under realistic multi-turn interactions remains poorly understood. We conduct a systematic evaluation of conversational reliability through three representative tasks that reflect practical interaction challenges: (1) maintaining global constraints across topic shifts, (2) selecting the correct tool or agent amid interleaved intents, and (3) tracking structured entities under revisions and distractions. Each task pairs single-turn and multi-turn settings, allowing us to quantify reliability degradation under extended dialogue. Across both commercial and open-source models, we observe substantial declines in reliability, particularly for smaller models. Error analyses reveal recurring failure modes such as instruction drift, intent confusion, and contextual overwriting, which compromise dependable behavior in operational systems. Our findings highlight the need for stress-testing LLMs for conversational reliability and developing more robust evaluation methods for trustworthy deployment.
Metadata
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Raw Data (Debug)
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"raw_xml": "<entry>\n <id>http://arxiv.org/abs/2603.01423v1</id>\n <title>Quantifying Conversational Reliability of Large Language Models under Multi-Turn Interaction</title>\n <updated>2026-03-02T03:59:40Z</updated>\n <link href='https://arxiv.org/abs/2603.01423v1' rel='alternate' type='text/html'/>\n <link href='https://arxiv.org/pdf/2603.01423v1' rel='related' title='pdf' type='application/pdf'/>\n <summary>Large Language Models (LLMs) are increasingly deployed in real-world applications where users engage in extended, mixed-topic conversations that depend on prior context. Yet, their reliability under realistic multi-turn interactions remains poorly understood. We conduct a systematic evaluation of conversational reliability through three representative tasks that reflect practical interaction challenges: (1) maintaining global constraints across topic shifts, (2) selecting the correct tool or agent amid interleaved intents, and (3) tracking structured entities under revisions and distractions. Each task pairs single-turn and multi-turn settings, allowing us to quantify reliability degradation under extended dialogue. Across both commercial and open-source models, we observe substantial declines in reliability, particularly for smaller models. Error analyses reveal recurring failure modes such as instruction drift, intent confusion, and contextual overwriting, which compromise dependable behavior in operational systems. Our findings highlight the need for stress-testing LLMs for conversational reliability and developing more robust evaluation methods for trustworthy deployment.</summary>\n <category scheme='http://arxiv.org/schemas/atom' term='cs.CL'/>\n <published>2026-03-02T03:59:40Z</published>\n <arxiv:comment>Accepted at the Workshop on Assessing and Improving Reliability of Foundation Models in the Real World (AAAI 2026)</arxiv:comment>\n <arxiv:primary_category term='cs.CL'/>\n <author>\n <name>Jiyoon Myung</name>\n </author>\n </entry>"
}