This dataset contains the questions from ArXivMath December 2025 used for the MathArena Leaderboard
problem_idx (int64): Problem index within the corresponding MathArena benchmark.
answer (string): Gold final answer.
problem_type (list[string]): Problem type/category labels.
source… See the full description on the dataset page:
https://huggingface.co/datasets/MathArena/arxivmath-1225.