Head to head / Harness
Gemini CLI vs Roo Code
Gemini CLI: Google's open-source terminal coding agent, with IDE integration and a free usage tier. Roo Code: Discontinued VS Code coding agent with Code, Architect, and Orchestrator modes.
| Fact | Harness | Harness |
|---|---|---|
| Kind | Harness | Harness |
| Status | Active | Deprecated |
| Source | Open source | Open source |
| License | Apache-2.0 | Apache-2.0 |
| Pricing | Freemium · Free · Google AI Pro $19.99/mo · Google AI Ultra (5x) $100/mo · Google AI Ultra (20x) $200/mo · API key Pay as you go | Not verified yet |
| Model access | Your subscription, Your API key, Vendor credits | Your API key, Local models |
| Platforms | macOS, Linux, Windows | macOS, Linux, Windows |
| Interfaces | CLI, IDE extension | IDE extension |
| Install | npm install -g @google/gemini-cli | https://marketplace.visualstudio.com/items?itemName=RooVeterinaryInc.roo-cline (VS Code Marketplace) |
| GitHub | ★ 107k · checked 2026-10-18 | ★ 24.3k · 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