CLAIM 3 / Hermes Agent
40–90% token reduction vs naive implementations
not as labeled
Observed
Hermes carries a 13.9K-token fixed overhead per API call (8.7K tool definitions + 5.2K system prompt). In a measured 3-session evening: 2.8M of 3.9M tokens (73%) were overhead (#4379). v0.15.0's genuine 47% per-turn call reduction addresses variable cost only — the release notes themselves confirm the floor is unchanged in v0.15.1.
- UPDATE 2026-07-09(v0.18.2): #4379 re-confirmed OPEN (updated 2026-06-30; clustered with related agent-overhead issues #20717/#36656/#49673/#54256). No re-measurement on v0.18.x in this pass — floor claim stands pending fresh session measure.