Specialized retrosynthesis models outperform LLMs on chemically plausible multi-step routes when scored by the new URSA Solv-2 protocol using ChemCensor.
Chemical reasoning in LLMs unlocks strategy-aware synthesis planning and reaction mechanism elucidation.Matter, 0(102812):102812, April 2026
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URSA: Chemistry-Aware Benchmark for Utilitarian Retrosynthesis Assessment
Specialized retrosynthesis models outperform LLMs on chemically plausible multi-step routes when scored by the new URSA Solv-2 protocol using ChemCensor.