New NeurIPS 2026 paper reveals primacy bias in RLVR training of LLMs

ParshinShojaee · x · 2026-09-25

Parshin Shojaee and colleagues' paper "On the Primacy Bias of RLVR Training" is accepted to NeurIPS 2026. The work shows that LLMs exhibit a primacy bias during RLVR training — early training samples have an outsized effect on later learning, with direct implications for data ordering and curriculum design in RLVR pipelines.

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