LLM reviewer experiments hit persistent "75% wall" on valid outputs

Experiments with LLM reviewers attempting to verify AI agent outputs revealed a persistent "75% wall" where valid outputs were rejected. Standard methods like rerunning prompts, using varied prompts, or calibrating wording failed to shift this boundary. The core issue is a fundamental trade-off: a sharper reviewer catches more errors but also rejects more legitimate work, a geometric constraint rather than a model defect. AI

IMPACT Highlights limitations in current LLM evaluation methods, suggesting a need for new approaches beyond prompt engineering.

RANK_REASON The item describes experimental results and analysis of LLM performance on a specific task, fitting the definition of research. [lever_c_demoted from research: ic=1 ai=1.0]

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