arXiv cs.CLPaper
Review Rarely Beats the Stronger Model: Separating Verification from Capability Transfer in LLM Pipelines
This corrects how the field measures review pipelines. A Qwen-reviewed Llama result looks good until you compare it to Qwen alone. The paper shows review beats the stronger model in only 9 of 96 tested pairs across model sizes and domains. If you're stacking models, use a selector instead of a reviewer. Save 60% of your inference cost and get better accuracy. This is immediately actionable.