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Harness Arena - open-source blind benchmark for agent harnesses

This story is from 2026-09-02. It is preserved in the archive; the latest stories are on the live feed.

I built Harness Arena to compare Claude Code, Codex, Hermes, OpenClaw, OpenCode and other agent harnesses under controlled tasks. Each harness receives the same task in an isolated workspace, outputs are anonymized, users judge the actual deliverables blind, and identities are revealed afterward. M…

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  1. 2026-09-02 10:31 · r/AI_Agents
    Harness Arena - open-source blind benchmark for agent harnesses

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