Open-Source Jermes Plugin Routes Yes/No Decisions to a Smaller Model, Cutting Costs 39%

grandorganics · x · 2026-09-29

The author's Hermes agent (Nous Research) was paying frontier-model prices for yes/no decisions, so he built Jermes, an open-source Hermes Agent plugin that routes those decisions to Jev by Typesafe. Live A/B testing showed 39% lower costs with identical answers. Repo is public.

Related event: Open-source Jermes routes simple agent decisions to small models, cutting costs 39%(2 posts)→

Original post →

More from coding & agent

coding & agent channel →