arXiv Computation and Language By Sanghee Park, Kee-Eung Kim

PRISM-VLM: A Multi-Axis Discriminative Benchmark for Compact Vision-Language Models

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PRISM‑VLM is a new benchmark for compact vision‑language models that evaluates each item across seven axes—task quality, behavioral robustness, and capability bottlenecks—rather than collapsing performance into a single accuracy score. It aggregates these axes into a single PScore while also providing per‑axis profiles, revealing differences that single‑axis benchmarks miss, such as sycophancy. The benchmark draws on items from fifteen public datasets and will be released with its full pipeline, prompts, and annotations.

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