Head to head / Harness
GitHub Copilot CLI vs Reasonix
GitHub Copilot CLI: GitHub's terminal coding agent, with plan mode, subagents, and MCP. Reasonix: Open-source coding agent for the terminal, desktop app, browser and VS Code.
| Fact | Harness | Harness |
|---|---|---|
| Kind | Harness | Harness |
| Status | Active | Active |
| Source | Closed source | Open source |
| License | proprietary | MIT |
| Pricing | Freemium · Copilot Free Free · Copilot Pro $10/mo · Copilot Business $19/mo · Copilot Enterprise $39/mo · Copilot Pro+ $39/mo · Copilot Max $100/mo | Free · Free |
| Model access | Your subscription, Your API key, Local models | Your API key |
| Platforms | macOS, Linux, Windows | macOS, Linux, Windows |
| Interfaces | CLI, TUI | CLI, TUI, Desktop, Web, IDE extension |
| Install | npm install -g @github/copilot | npm install -g reasonix |
| GitHub | ★ 11.3k · checked 2026-10-18 | ★ 35.8k · checked 2026-10-18 |
| Last verified | 2026-10-18 | 2026-10-18 |
| Worktrees | ? | ? |
| Parallel agents | ✓ | ? |
| Subagents | ✓ | ? |
| MCP | ✓ | ✓ |
| Remote access | ? | ? |
| Cloud sandbox | ✗ | ? |
| Diff review | ? | ? |
| Plan mode | ✓ | ✓ |
✓ yes ✗ no ? not verified yet
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