Head to head / Harness
Amp vs Reasonix
Amp: Coding agent for terminal, web, macOS, and iOS that can run threads in hosted orbs. 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 · Hobby Free · Individual $20/mo · Enterprise Contact sales | Free · Free |
| Model access | Your subscription, Your API key, Vendor credits | Your API key |
| Platforms | macOS, Linux, Windows, Web, iOS | macOS, Linux, Windows |
| Interfaces | CLI, Desktop, Web, Mobile | CLI, TUI, Desktop, Web, IDE extension |
| Install | curl -fsSL https://ampcode.com/install.sh | bash | npm install -g reasonix |
| GitHub | No public repository | ★ 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
How we check facts More head to heads