Field journal

The Harness Matters: Codex, Claude Code, Pi, Amp, and Hermes Compared

13 min read

A practical, evidence-weighted comparison of Codex, Claude Code, Pi, Amp, and Hermes using Lilian Weng’s harness-engineering framework.

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A practical, evidence-weighted comparison of Codex, Claude Code, Pi, Amp, and Hermes using Lilian Weng’s harness-engineering framework.

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