GAUSS: Benchmarking Structured Mathematical Skills for Large Language Models

We introduce GAUSS (General Assessment of Underlying Structured Skills in Mathematics), a benchmark that evaluates LLMs' mathematical abilities across twelve core skill dimensions, grouped into three domains: knowledge and understanding, problem solving and communication, and meta-skills and creativity. By categorizing problems according to cognitive skills and designing tasks that isolate specific abilities, GAUSS constructs comprehensive, fine-grained, and interpretable profiles of models' mathematical abilities. These profiles faithfully represent their underlying mathematical intelligence. To exemplify how to use the textscGAUSS benchmark, we have derived the skill profile of textscGPT-5-thinking, revealing its strengths and weaknesses as well as its differences relative to textsco4-mini-high, thereby underscoring the value of multidimensional, skill-based evaluation.