Hermes Index adds GPT 6.1 Sol as Claude Opus 5.5 keeps agentic crown
Teknium · x · 2026-10-17
Nous Research updated its Hermes Index, an opinionated agentic leaderboard that runs models inside Hermes Agent and reports task completion and cost per task across four suites.
Current top 3: Claude Opus 5.5 (Anthropic) leads with 63.31 avg score at $4.99/task; GPT 6.1 Sol scores 57.09 at just $1.19/task; GPT 6 Astra scores 56.25 but costs $11.61/task. Notably, GPT 6.1 Sol delivers near-frontier scores at roughly a quarter of Opus 5.5's cost.
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