nanobotvsZenith
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
nanobot
HKUDS · Agent harness
OSSMCP
Panel
5.92 spec wins
- Reliability
- 5.2
- Usefulness
- 6.0
- Cost
- 7.3
- Longevity
- 5.0
“Answers your email, which makes it the only agent on this board with a channel you already ignore.”
Zenith
Intelligent Internet · Agent harness
OSSMCP
Panel
5.91 spec wins
- Reliability
- 5.7
- Usefulness
- 6.3
- Cost
- 6.2
- Longevity
- 5.5
“The research finding is that long agent runs fail by stopping too early, which makes them the most relatable thing in the stack.”
Spec by spec
| Spec | nanobot | Zenith |
|---|---|---|
| Architecture | ||
| Category | Agent harness | Agent harness |
| Runs | local | local |
| Platforms | macos, linux, windows | macos, linux |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | Yes | Yes |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | Yes | Yes |
| Multi-file edits | No | Yes |
| Git operations | No | No |
| Browser control | No | No |
| Sandboxed execution | No | No |
| Multi-agent orchestration | Yes | YesThe orchestrator dynamically allocates worker and tester sessions and can register reusable skills between turns. |
| Headless / CI mode | Yes | Yes |
| Models | ||
| Backbone | OpenAI-compatible APIs, Anthropic, Grok, Kimi, MiniMax, Ollama, vLLM | via managed agents (Claude Code, Codex, Hermes) |
| Bring your own model | Yes | Yes |
| Local models | Yes | No |
| Cost | ||
| Pricing model | byok | byok |
| Starts at | $0/mo | $0/mo |
| Free tier | Yes | Yes |
| Bring your own key | Yes | Yes |
| Openness | ||
| Open source | Yes | Yes |
| License | MIT | Apache-2.0 |
| GitHub stars | 48,739 | 320 |
Which one would each critic pick
| Critic | nanobot | Zenith | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 7.0 | 6.3 | nanobot — Pick nanobot if you want a personal agent in Telegram you can read end to end in an afternoon; pick OpenClaw if you want the bigger ecosystem and can carry the weight. |
| El Crítico | 5.8 | 5.8 | no preference |
| El Profesor | 5.5 | 6.0 | Zenith — The report claims a best mean rank at under half the baseline's per-task cost, measured across eight tasks the authors selected against baselines the authors implemented. |
| La Inversora | 4.8 | 5.3 | Zenith — A research group with 286 stars publishing a harness as the artefact of a study, which makes this a paper with a repository attached rather than a product with a roadmap. |
| La Jefa | 5.0 | 4.8 | nanobot — A personal agent installed per person with no SSO, no audit trail and no admin plane; the Docker Compose and Render recipes deploy one assistant, not sixty. |
| El Hacker | 7.3 | 7.5 | Zenith — Apache-2.0, launched with uv run, and it orchestrates over MCP and ACP, so the sessions it drives are the agents I already installed rather than a captive runtime. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.