Head to head / Harness
Claude Code vs Reasonix
Claude Code: Anthropic's coding agent, available in the terminal, IDEs, a desktop app, the web, and mobile. 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 | Paid · Pro $20/mo · Team Standard $25/mo · Max $100/mo · Team Premium $125/mo · Enterprise Contact sales · API Pay as you go | Free · Free |
| Model access | Your subscription, Your API key | Your API key |
| Platforms | macOS, Linux, Windows, Web, iOS, Android | macOS, Linux, Windows |
| Interfaces | CLI, IDE extension, Desktop, Web, Mobile | CLI, TUI, Desktop, Web, IDE extension |
| Install | curl -fsSL https://claude.ai/install.sh | bash | npm install -g reasonix |
| GitHub | ★ 152k · 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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