AizenvsKeen Code
Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.
Aizen
Talmetis Labs · Terminal agent
#220OSS
Panel
5.61 spec wins
- Reliability
- 4.8
- Usefulness
- 5.3
- Cost
- 8.2
- Longevity
- 4.2
“It has a time-machine feature, which is the most honest name yet for undoing what an agent did to your repository.”
Keen Code
mochow13 · Terminal agent
#201OSSMCP
Panel
5.51 spec wins
- Reliability
- 5.5
- Usefulness
- 5.2
- Cost
- 7.5
- Longevity
- 4.0
“A Go binary that you install through npm, which is the most honest summary of modern tooling currently on offer.”
Spec by spec
| Spec | Aizen | Keen Code |
|---|---|---|
| Architecture | ||
| Category | Terminal agent | Terminal agent |
| Runs | local | local |
| Platforms | macos, linux, windows | macos, linux |
| Context window | not documented | not documented |
| Protocols | ||
| MCP client | No | Yes |
| MCP server | No | No |
| Capabilities | ||
| Runs terminal commands | Yes | Yes |
| Multi-file edits | Yes | Yes |
| Git operations | Yes | Yes |
| Browser control | No | No |
| Sandboxed execution | No | No |
| Multi-agent orchestration | Yes | Yes |
| Headless / CI mode | No | No |
| Models | ||
| Backbone | OpenAI-compatible | multiple providers |
| Bring your own model | Yes | Yes |
| Local models | No | 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 | Apache-2.0 | MIT |
| GitHub stars | 115 | 70 |
Which one would each critic pick
| Critic | Aizen | Keen Code | Pick |
|---|---|---|---|
| El Juez | — | — | not enough reviews |
| El Amigo | 6.0 | 6.0 | no preference |
| El Crítico | 5.3 | 5.3 | no preference |
| El Profesor | 6.0 | 6.0 | no preference |
| La Inversora | 5.0 | 4.5 | Aizen — Talmetis Labs, 109 stars, no price, no hosted tier and no revenue line. This is a portfolio piece, and the survival question is whether its author stays interested. |
| La Jefa | 4.5 | 4.8 | Keen Code — Free across sixty desks with nothing to administer: no console, no identity integration, no audit record and no unattended run to put in a pipeline. |
| El Hacker | 7.0 | 6.8 | Aizen — Apache-2.0, one Rust binary, and it points at any OpenAI-compatible endpoint, which is the whole configuration surface. There is no MCP client, so my servers stay unplugged. |
Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.