Head to head / Harness
Amp vs Pi
Amp: Coding agent for terminal, web, macOS, and iOS that can run threads in hosted orbs. 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 · Hobby Free · Individual $20/mo · Enterprise Contact sales | Free · Free |
| Model access | Your subscription, Your API key, Vendor credits | Your subscription, Your API key, Local models |
| Platforms | macOS, Linux, Windows, Web, iOS | macOS, Linux, Windows, Android |
| Interfaces | CLI, Desktop, Web, Mobile | CLI, TUI, API |
| Install | curl -fsSL https://ampcode.com/install.sh | bash | npm install -g --ignore-scripts @earendil-works/pi-coding-agent |
| GitHub | No public repository | ★ 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