Evidence Lock Before Commitment: A Frozen Interface Degrades LLM-as-Judge Evaluation
LLM judges are often asked to extract criteria and evidence before choosing between candidate answers. This workflow assumes that the intermediate record preserves the information needed for a later verdict. For reasoning-capable models, visible field order does not reveal internal decision order, so we test an observable alternative: persist the evidence in one call and make it the exclusive input to the next. Across 24,000 judgments over HelpSteer3, FeedbackQA, and CoVal, we compare standard pairwise judging, structured one-call judging, two-call evidence locking, and three-call pointwise locking with Claude Sonnet 4.5 and GPT-5. Evidence locking reduces agreement with released human pr...
| Authors | Divyansh Singh |
|---|---|
| Primary category | cs.CL |
| Published | 5 August 2026 |
| Last updated at source | 11 August 2026 |
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