Determine whether the dual-LLM consensus gate is necessary

Determine whether the dual-LLM consensus gate is necessary for accurate trofinetide-treatment phenotype extraction beyond the performance obtainable from a single large language model.

Background

The dual-LLM consensus gate was adopted because it achieved the best observed overall accuracy and exposed disagreement across phenotypes lacking expert ground truth. However, its advantage over the stronger single-agent configuration was small and statistically unresolved in the available evaluation data. The authors therefore treat the consensus architecture as the best-performing configuration on present evidence, not as a demonstrated necessity.

References

We therefore adopt the consensus gate as the best-performing configuration on present evidence, and for the observability of the two agents' disagreement across the 17 phenotypes that have no ground truth, rather than as a proven necessity.

— Documenting Trofinetide Treatment Phenotypes in Rett Syndrome with a Dual-LLM Consensus Pipeline  (2610.22062 - Palacios et al., 15 Oct 2026) in Supplementary Note S2, paragraph “What the pairwise tests do and do not establish”; Supplementary Table S7, caption for Table “Architecture selection”