Author

Jia-Lin Cheng

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#artificial intelligence Preprint Sep 2026

MechBench: Can AI Scientific Agents Discover Mechanisms Beyond Phenomenal Laws?

MechBench is introduced, a benchmark that explicitly separates mechanism discovery from phenomenal-law recovery and reveals a substantial generalization gap in mechanistic reasoning, establishing mechanism discovery as a distinct challenge beyond recovering observable scientific laws.

Zihan Yu, Jia-Dong Zhang, Jia-Lin Cheng et al. · 1 citation