Head to head / Harness
GitHub Copilot CLI vs Pi
GitHub Copilot CLI: GitHub's terminal coding agent, with plan mode, subagents, and MCP. Pi: Minimal, extensible terminal agent from Earendil Works, designed to be customized.
| 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 subscription, Your API key, Local models |
| Platforms | macOS, Linux, Windows | macOS, Linux, Windows, Android |
| Interfaces | CLI, TUI | CLI, TUI, API |
| Install | npm install -g @github/copilot | npm install -g --ignore-scripts @earendil-works/pi-coding-agent |
| GitHub | ★ 11.3k · checked 2026-10-18 | ★ 116k · 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
How we check facts More head to heads