Head to head / Harness
Aider vs Hermes Agent
Aider: Open-source AI pair programming in the terminal, with git-aware edits and multi-model support. Hermes Agent: Self-improving terminal agent that runs locally or on container and serverless backends.
| Fact | Harness | Harness |
|---|---|---|
| Kind | Harness | Harness |
| Status | Active | Active |
| Source | Open source | Open source |
| License | Apache-2.0 | MIT |
| Pricing | Free · Free | Free · Free · Nous Portal Plus $20/mo · Nous Portal Super $100/mo · Nous Portal Ultra $200/mo |
| 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, Web | CLI, TUI, Desktop |
| Install | curl -LsSf https://aider.chat/install.sh | sh | curl -fsSL https://hermes-agent.nousresearch.com/install.sh | bash |
| GitHub | ★ 49.6k · checked 2026-10-18 | ★ 255k · 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