ReasonBENCH: Benchmarking the (In)Stability of LLM Reasoning

arXiv — cs.LGTuesday, December 9, 2025 at 5:00:00 AM
  • ReasonBENCH has been introduced as the first benchmark aimed at quantifying the instability in reasoning capabilities of large language models (LLMs). This benchmark addresses the limitations of current evaluation practices that primarily focus on single-run accuracy, neglecting the inherent uncertainties in LLM outputs. ReasonBENCH includes a modular evaluation library, a multi-run protocol for reliable metrics, and a public leaderboard to promote variance-aware reporting.
  • The development of ReasonBENCH is significant as it provides practitioners with a standardized method to assess the stability and reproducibility of LLM performance. By focusing on cost-consistency and quality metrics, it enables a more comprehensive understanding of LLM capabilities, which is crucial for applications requiring multi-step reasoning and chain-of-thought processes.
  • This initiative reflects a growing recognition of the complexities involved in evaluating AI systems, particularly in the context of LLMs. The introduction of frameworks like ReasonBENCH, alongside other methodologies aimed at enhancing LLM reliability and reasoning, underscores an ongoing effort to improve AI evaluation practices. As the field evolves, addressing uncertainties and enhancing interpretability remains a priority, particularly in light of the increasing deployment of LLMs across various domains.
— via World Pulse Now AI Editorial System

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