Model Router

August 26, 2026 · View on GitHub

Reference material for a PR to RouteWorks/RouterArena, documenting KT's Model Router: a category-based LLM router that classifies each request by Task / Level / Domain (TLD) and routes it to the Pareto-optimal LLM for that category.

Contents

  • docs/model-router.md — concept and design: the TLD taxonomy (12 Task / 10 Domain / 3 Level categories), the cal/test split, and Pareto-optimal routing-policy selection.
  • docs/pr-data.md — concrete data for this PR: the TLD policy in use, the selected Pareto-optimal result, and the TLD classifier weights (mmBERT, TBC on Hugging Face).
  • data/ — routing-policy / experiment data backing this PR: the TLD routing policy table and the calibration query set used to fit it (Pareto-frontier / test-set numbers still TBC).

License

Apache License 2.0.