The author has published a pilot paper and an open registry on Hugging Face to measure the evidence-saturation point (k*) of language models. This metric determines the optimal number of evidence fragments to inject into prompts, as adding more context does not monotonically improve correctness and can increase cost or epistemic contamination.

  • The study finds that the correctness-optimal k ranges from 1 to the full evidence set depending on task type, suggesting a single context profile is insufficient.
  • An open Evidence-k Registry has been created on Hugging Face, seeded with 35 task-level measurements from the paper.
  • The registry invites contributions from local-model operators to document model revisions, quantizations, served backends, and reliability metrics.

This initiative aims to provide a reproducible protocol for calibrating context windows per model and backend to balance correctness with efficiency.