Agents & MCP
Six Agent Harnesses Compared: Codex, Hermes Agent, and Command Code Lead on Task Success Rate
A comparison of six agent harnesses on task success rate shows results ranging from 19 to 21 out of 29 tasks. Codex, Hermes Agent, and Command Code tied for the lead, while Claude Code followed by a single task.
September 17, 2026 2 min read
Curated by Oleksandr Kuzmenko, AI Product EngineerUpdated September 17, 2026Sources cited on every story
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Why it matters
A comparison of six agent harnesses on task success rate shows results ranging from 19 to 21 out of 29 tasks. Codex, Hermes Agent, and Command Code tied for the lead, while Claude Code followed by a single task.