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

grandorganics · x · 2026-09-29

The author noticed their Nous Research Hermes agent was paying frontier-model prices for simple yes/no decisions, so they built Jermes — an open-source Hermes Agent plugin that hands those decisions to Jev by typesafeai. Live A/B testing showed 39% lower costs with identical answers. Repo available.

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