Claude Code vs Codex CLI vs Aider vs OpenCode vs Pi vs Cursor
A practical comparison of AI coding harnesses in real autonomous workflows. The important finding is not that one tool wins. It is that each harness has a job: planning, repo edits, reviews, interactive coding, or lightweight command execution.
Key Facts
- *Different harnesses have different failure modes
- *Claude Code and Codex fit different parts of the workflow
- *Harness switching works best when the preference is explicit
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